61176991592880 has 160 divisors (see below), whose sum is σ = 210759588856320. Its totient is φ = 16310857455360.

The previous prime is 61176991592771. The next prime is 61176991592887. The reversal of 61176991592880 is 8829519967116.

61176991592880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 61176991592799 and 61176991592808.

It is not an unprimeable number, because it can be changed into a prime (61176991592887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9123459 + ... + 14338461.

It is an arithmetic number, because the mean of its divisors is an integer number (1317247430352).

Almost surely, 2^{61176991592880} is an apocalyptic number.

61176991592880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61176991592880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105379794428160).

61176991592880 is an abundant number, since it is smaller than the sum of its proper divisors (149582597263440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61176991592880 is a wasteful number, since it uses less digits than its factorization.

61176991592880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5220456 (or 5220444 counting only the distinct ones).

The product of its (nonzero) digits is 117573120, while the sum is 72.

The spelling of 61176991592880 in words is "sixty-one trillion, one hundred seventy-six billion, nine hundred ninety-one million, five hundred ninety-two thousand, eight hundred eighty".