81016264296 has 48 divisors (see below), whose sum is σ = 239366237760. Its totient is φ = 24550382880.

The previous prime is 81016264291. The next prime is 81016264321. The reversal of 81016264296 is 69246261018.

81016264296 is a `hidden beast` number, since 8 + 10 + 1 + 626 + 4 + 2 + 9 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (81016264291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51145840 + ... + 51147423.

It is an arithmetic number, because the mean of its divisors is an integer number (4986796620).

Almost surely, 2^81016264296 is an apocalyptic number.

It is an amenable number.

81016264296 is an abundant number, since it is smaller than the sum of its proper divisors (158349973464).

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

81016264296 is a wasteful number, since it uses less digits than its factorization.

81016264296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102293286 (or 102293279 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 81016264296 in words is "eighty-one billion, sixteen million, two hundred sixty-four thousand, two hundred ninety-six".