71775146164 has 12 divisors (see below), whose sum is σ = 125743189600. Its totient is φ = 35848520568.

The previous prime is 71775146153. The next prime is 71775146171. The reversal of 71775146164 is 46164157717.

It is a congruent number.

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, 9758994 + ... + 9766345.

Almost surely, 2^71775146164 is an apocalyptic number.

It is an amenable number.

71775146164 is a deficient number, since it is larger than the sum of its proper divisors (53968043436).

71775146164 is a wasteful number, since it uses less digits than its factorization.

71775146164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19526262 (or 19526260 counting only the distinct ones).

The product of its digits is 987840, while the sum is 49.

The spelling of 71775146164 in words is "seventy-one billion, seven hundred seventy-five million, one hundred forty-six thousand, one hundred sixty-four".