669052724905 has 16 divisors (see below), whose sum is σ = 810857179584. Its totient is φ = 529913492800.

The previous prime is 669052724881. The next prime is 669052724911. The reversal of 669052724905 is 509427250966.

It is not a de Polignac number, because 669052724905 - 2⁹ = 669052724393 is a prime.

It is a Duffinian 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, 16638354 + ... + 16678516.

It is an arithmetic number, because the mean of its divisors is an integer number (50678573724).

Almost surely, 2^669052724905 is an apocalyptic number.

It is an amenable number.

669052724905 is a deficient number, since it is larger than the sum of its proper divisors (141804454679).

669052724905 is a wasteful number, since it uses less digits than its factorization.

669052724905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73256.

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 669052724905 in words is "six hundred sixty-nine billion, fifty-two million, seven hundred twenty-four thousand, nine hundred five".