667655265336 has 32 divisors (see below), whose sum is σ = 1669406499600. Its totient is φ = 222515976960.

The previous prime is 667655265323. The next prime is 667655265341. The reversal of 667655265336 is 633562556766.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 667655265336.

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, 2083525 + ... + 2382516.

Almost surely, 2^667655265336 is an apocalyptic number.

It is an amenable number.

667655265336 is an abundant number, since it is smaller than the sum of its proper divisors (1001751234264).

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

667655265336 is a wasteful number, since it uses less digits than its factorization.

667655265336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4472279 (or 4472275 counting only the distinct ones).

The product of its digits is 122472000, while the sum is 60.

The spelling of 667655265336 in words is "six hundred sixty-seven billion, six hundred fifty-five million, two hundred sixty-five thousand, three hundred thirty-six".