61166276172 has 60 divisors (see below), whose sum is σ = 159925762920. Its totient is φ = 20385566784.

The previous prime is 61166276159. The next prime is 61166276183. The reversal of 61166276172 is 27167266116.

61166276172 is a `hidden beast` number, since 6 + 1 + 1 + 6 + 6 + 27 + 617 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3015079 + ... + 3035297.

It is an arithmetic number, because the mean of its divisors is an integer number (2665429382).

Almost surely, 2^61166276172 is an apocalyptic number.

It is an amenable number.

61166276172 is an abundant number, since it is smaller than the sum of its proper divisors (98759486748).

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

61166276172 is a wasteful number, since it uses less digits than its factorization.

61166276172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29572 (or 29561 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The spelling of 61166276172 in words is "sixty-one billion, one hundred sixty-six million, two hundred seventy-six thousand, one hundred seventy-two".