61129604999232 has 420 divisors, whose sum is σ = 229955099158224. Its totient is φ = 15877818754560.

The previous prime is 61129604999191. The next prime is 61129604999291. The reversal of 61129604999232 is 23299940692116.

61129604999232 is a `hidden beast` number, since 6 + 1 + 1 + 29 + 6 + 0 + 499 + 92 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 61129604999232.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 8144578 + ... + 13732929.

Almost surely, 2^{61129604999232} is an apocalyptic number.

It is an amenable number.

61129604999232 is an abundant number, since it is smaller than the sum of its proper divisors (168825494158992).

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

61129604999232 is a wasteful number, since it uses less digits than its factorization.

61129604999232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21877556 (or 21877530 counting only the distinct ones).

The product of its (nonzero) digits is 22674816, while the sum is 63.

The spelling of 61129604999232 in words is "sixty-one trillion, one hundred twenty-nine billion, six hundred four million, nine hundred ninety-nine thousand, two hundred thirty-two".