71556315152 has 20 divisors (see below), whose sum is σ = 158446126656. Its totient is φ = 30666992160.

The previous prime is 71556315137. The next prime is 71556315199. The reversal of 71556315152 is 25151365517.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319447724 + ... + 319447947.

Almost surely, 2^71556315152 is an apocalyptic number.

It is an amenable number.

71556315152 is an abundant number, since it is smaller than the sum of its proper divisors (86889811504).

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

71556315152 is a wasteful number, since it uses less digits than its factorization.

71556315152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638895686 (or 638895680 counting only the distinct ones).

The product of its digits is 157500, while the sum is 41.

The spelling of 71556315152 in words is "seventy-one billion, five hundred fifty-six million, three hundred fifteen thousand, one hundred fifty-two".