71672760164 has 24 divisors (see below), whose sum is σ = 126500539200. Its totient is φ = 35530631136.

The previous prime is 71672760143. The next prime is 71672760167. The reversal of 71672760164 is 46106727617.

It is not an unprimeable number, because it can be changed into a prime (71672760167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216089 + ... + 435935.

It is an arithmetic number, because the mean of its divisors is an integer number (5270855800).

Almost surely, 2^71672760164 is an apocalyptic number.

It is an amenable number.

71672760164 is a deficient number, since it is larger than the sum of its proper divisors (54827779036).

71672760164 is a wasteful number, since it uses less digits than its factorization.

71672760164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220547 (or 220545 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 47.

The spelling of 71672760164 in words is "seventy-one billion, six hundred seventy-two million, seven hundred sixty thousand, one hundred sixty-four".