61165700272 has 40 divisors (see below), whose sum is σ = 119364185600. Its totient is φ = 30362713920.

The previous prime is 61165700269. The next prime is 61165700347. The reversal of 61165700272 is 27200756116.

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, 1453447 + ... + 1494937.

It is an arithmetic number, because the mean of its divisors is an integer number (2984104640).

Almost surely, 2^61165700272 is an apocalyptic number.

It is an amenable number.

61165700272 is a deficient number, since it is larger than the sum of its proper divisors (58198485328).

61165700272 is a wasteful number, since it uses less digits than its factorization.

61165700272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42161 (or 42155 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The spelling of 61165700272 in words is "sixty-one billion, one hundred sixty-five million, seven hundred thousand, two hundred seventy-two".