660962977263 has 16 divisors (see below), whose sum is σ = 997679967840. Its totient is φ = 432327984192.

The previous prime is 660962977219. The next prime is 660962977271. The reversal of 660962977263 is 362779269066.

It is not a de Polignac number, because 660962977263 - 2²⁰ = 660961928687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 660962977263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660962976263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230943006 + ... + 230945867.

It is an arithmetic number, because the mean of its divisors is an integer number (62354997990).

Almost surely, 2^660962977263 is an apocalyptic number.

660962977263 is a deficient number, since it is larger than the sum of its proper divisors (336716990577).

660962977263 is a wasteful number, since it uses less digits than its factorization.

660962977263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461888935 (or 461888929 counting only the distinct ones).

The product of its (nonzero) digits is 61725888, while the sum is 63.

The spelling of 660962977263 in words is "six hundred sixty billion, nine hundred sixty-two million, nine hundred seventy-seven thousand, two hundred sixty-three".