71816315266256 has 40 divisors (see below), whose sum is σ = 151932708371808. Its totient is φ = 32613858608000.

The previous prime is 71816315266187. The next prime is 71816315266259. The reversal of 71816315266256 is 65266251361817.

It is a junction number, because it is equal to n+sod(n) for n = 71816315266195 and 71816315266204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71816315266259) 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, 186814055 + ... + 187198086.

Almost surely, 2^{71816315266256} is an apocalyptic number.

It is an amenable number.

71816315266256 is an abundant number, since it is smaller than the sum of its proper divisors (80116393105552).

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

71816315266256 is a wasteful number, since it uses less digits than its factorization.

71816315266256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374013251 (or 374013245 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 59.

The spelling of 71816315266256 in words is "seventy-one trillion, eight hundred sixteen billion, three hundred fifteen million, two hundred sixty-six thousand, two hundred fifty-six".