85441630916 has 48 divisors (see below), whose sum is σ = 154131293232. Its totient is φ = 41413017600.

The previous prime is 85441630909. The next prime is 85441630931. The reversal of 85441630916 is 61903614458.

It can be written as a sum of positive squares in 8 ways, for example, as 4529828416 + 80911802500 = 67304^2 + 284450^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77886080 + ... + 77887176.

It is an arithmetic number, because the mean of its divisors is an integer number (3211068609).

Almost surely, 2^85441630916 is an apocalyptic number.

It is an amenable number.

85441630916 is a deficient number, since it is larger than the sum of its proper divisors (68689662316).

85441630916 is a wasteful number, since it uses less digits than its factorization.

85441630916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600 (or 2598 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 85441630916 in words is "eighty-five billion, four hundred forty-one million, six hundred thirty thousand, nine hundred sixteen".