61073159539672 has 64 divisors (see below), whose sum is σ = 133686247864320. Its totient is φ = 25611428734848.

The previous prime is 61073159539669. The next prime is 61073159539723. The reversal of 61073159539672 is 27693595137016.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8804773 + ... + 14130475.

It is an arithmetic number, because the mean of its divisors is an integer number (2088847622880).

Almost surely, 2^{61073159539672} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61073159539672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66843123932160).

61073159539672 is an abundant number, since it is smaller than the sum of its proper divisors (72613088324648).

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

61073159539672 is a wasteful number, since it uses less digits than its factorization.

61073159539672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330120 (or 5330116 counting only the distinct ones).

The product of its (nonzero) digits is 64297800, while the sum is 64.

The spelling of 61073159539672 in words is "sixty-one trillion, seventy-three billion, one hundred fifty-nine million, five hundred thirty-nine thousand, six hundred seventy-two".