666002137464 has 32 divisors (see below), whose sum is σ = 1850005938000. Its totient is φ = 222000712416.

The previous prime is 666002137459. The next prime is 666002137481. The reversal of 666002137464 is 464731200666.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1541671399 + ... + 1541671830.

Almost surely, 2^666002137464 is an apocalyptic number.

It is an amenable number.

666002137464 is an abundant number, since it is smaller than the sum of its proper divisors (1184003800536).

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

666002137464 is a wasteful number, since it uses less digits than its factorization.

666002137464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083343244 (or 3083343234 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 666002137464 in words is "six hundred sixty-six billion, two million, one hundred thirty-seven thousand, four hundred sixty-four".