669920495432 has 32 divisors (see below), whose sum is σ = 1290180225600. Its totient is φ = 325874268864.

The previous prime is 669920495429. The next prime is 669920495443. The reversal of 669920495432 is 234594029966.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2952119 + ... + 3170937.

It is an arithmetic number, because the mean of its divisors is an integer number (40318132050).

Almost surely, 2^669920495432 is an apocalyptic number.

It is an amenable number.

669920495432 is a deficient number, since it is larger than the sum of its proper divisors (620259730168).

669920495432 is a wasteful number, since it uses less digits than its factorization.

669920495432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229205 (or 229201 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 59.

The spelling of 669920495432 in words is "six hundred sixty-nine billion, nine hundred twenty million, four hundred ninety-five thousand, four hundred thirty-two".