61077596172 has 24 divisors (see below), whose sum is σ = 142518558000. Its totient is φ = 20358603456.

The previous prime is 61077596161. The next prime is 61077596189. The reversal of 61077596172 is 27169577016.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591454 + ... + 687002.

It is an arithmetic number, because the mean of its divisors is an integer number (5938273250).

Almost surely, 2^61077596172 is an apocalyptic number.

It is an amenable number.

61077596172 is an abundant number, since it is smaller than the sum of its proper divisors (81440961828).

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

61077596172 is a wasteful number, since it uses less digits than its factorization.

61077596172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148825 (or 148823 counting only the distinct ones).

The product of its (nonzero) digits is 1111320, while the sum is 51.

The spelling of 61077596172 in words is "sixty-one billion, seventy-seven million, five hundred ninety-six thousand, one hundred seventy-two".