660290010648 has 64 divisors (see below), whose sum is σ = 1655019648000. Its totient is φ = 219524747520.

The previous prime is 660290010623. The next prime is 660290010697. The reversal of 660290010648 is 846010092066.

It is a congruent 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, 15835908 + ... + 15877548.

It is an arithmetic number, because the mean of its divisors is an integer number (25859682000).

Almost surely, 2^660290010648 is an apocalyptic number.

It is an amenable number.

660290010648 is an abundant number, since it is smaller than the sum of its proper divisors (994729637352).

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

660290010648 is a wasteful number, since it uses less digits than its factorization.

660290010648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43352 (or 43348 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 660290010648 in words is "six hundred sixty billion, two hundred ninety million, ten thousand, six hundred forty-eight".