61651166156 has 12 divisors (see below), whose sum is σ = 107892712200. Its totient is φ = 30824676960.

The previous prime is 61651166147. The next prime is 61651166177. The reversal of 61651166156 is 65166115616.

61651166156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59810 + ... + 356201.

It is an arithmetic number, because the mean of its divisors is an integer number (8991059350).

Almost surely, 2^61651166156 is an apocalyptic number.

It is an amenable number.

61651166156 is a deficient number, since it is larger than the sum of its proper divisors (46241546044).

61651166156 is a wasteful number, since it uses less digits than its factorization.

61651166156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453064 (or 453062 counting only the distinct ones).

The product of its digits is 194400, while the sum is 44.

The spelling of 61651166156 in words is "sixty-one billion, six hundred fifty-one million, one hundred sixty-six thousand, one hundred fifty-six".