9251642660 has 48 divisors (see below), whose sum is σ = 21087768576. Its totient is φ = 3389081472.

The previous prime is 9251642629. The next prime is 9251642671. The reversal of 9251642660 is 662461529.

It is a happy number.

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, 107072 + ... + 173111.

It is an arithmetic number, because the mean of its divisors is an integer number (439328512).

Almost surely, 2^9251642660 is an apocalyptic number.

It is an amenable number.

9251642660 is an abundant number, since it is smaller than the sum of its proper divisors (11836125916).

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

9251642660 is a wasteful number, since it uses less digits than its factorization.

9251642660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280332 (or 280330 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 9251642660 is about 96185.4597119544. The cubic root of 9251642660 is about 2099.2924797180.

The spelling of 9251642660 in words is "nine billion, two hundred fifty-one million, six hundred forty-two thousand, six hundred sixty".