669458572512 has 96 divisors (see below), whose sum is σ = 1765779523200. Its totient is φ = 222082011648.

The previous prime is 669458572499. The next prime is 669458572529. The reversal of 669458572512 is 215275854966.

It is a tau number, because it is divible by the number of its divisors (96).

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, 19404814 + ... + 19439282.

It is an arithmetic number, because the mean of its divisors is an integer number (18393536700).

Almost surely, 2^669458572512 is an apocalyptic number.

It is an amenable number.

669458572512 is an abundant number, since it is smaller than the sum of its proper divisors (1096320950688).

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

669458572512 is a wasteful number, since it uses less digits than its factorization.

669458572512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35448 (or 35440 counting only the distinct ones).

The product of its digits is 36288000, while the sum is 60.

The spelling of 669458572512 in words is "six hundred sixty-nine billion, four hundred fifty-eight million, five hundred seventy-two thousand, five hundred twelve".