71544008616 has 16 divisors (see below), whose sum is σ = 178860021600. Its totient is φ = 23848002864.

The previous prime is 71544008563. The next prime is 71544008629. The reversal of 71544008616 is 61680044517.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 1490500156 + ... + 1490500203.

It is an arithmetic number, because the mean of its divisors is an integer number (11178751350).

Almost surely, 2^71544008616 is an apocalyptic number.

It is an amenable number.

71544008616 is an abundant number, since it is smaller than the sum of its proper divisors (107316012984).

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

71544008616 is a wasteful number, since it uses less digits than its factorization.

71544008616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981000368 (or 2981000364 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 71544008616 in words is "seventy-one billion, five hundred forty-four million, eight thousand, six hundred sixteen".