61304156600 has 96 divisors (see below), whose sum is σ = 145764152640. Its totient is φ = 23969088000.

The previous prime is 61304156593. The next prime is 61304156681. The reversal of 61304156600 is 665140316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2861930 + ... + 2883270.

It is an arithmetic number, because the mean of its divisors is an integer number (1518376590).

Almost surely, 2^61304156600 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 61304156600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72882076320).

61304156600 is an abundant number, since it is smaller than the sum of its proper divisors (84459996040).

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

61304156600 is a wasteful number, since it uses less digits than its factorization.

61304156600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21681 (or 21672 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 61304156600 its reverse (665140316), we get a palindrome (61969296916).

The spelling of 61304156600 in words is "sixty-one billion, three hundred four million, one hundred fifty-six thousand, six hundred".