660764086456 has 16 divisors (see below), whose sum is σ = 1240807002840. Its totient is φ = 329882219040.

The previous prime is 660764086447. The next prime is 660764086457. The reversal of 660764086456 is 654680467066.

660764086456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 660764086456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660764086457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62472406 + ... + 62482981.

Almost surely, 2^660764086456 is an apocalyptic number.

It is an amenable number.

660764086456 is a deficient number, since it is larger than the sum of its proper divisors (580042916384).

660764086456 is a wasteful number, since it uses less digits than its factorization.

660764086456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124956054 (or 124956050 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 58.

The spelling of 660764086456 in words is "six hundred sixty billion, seven hundred sixty-four million, eighty-six thousand, four hundred fifty-six".