669350550778596 has 192 divisors, whose sum is σ = 1859073582643200. Its totient is φ = 207878220934272.

The previous prime is 669350550778549. The next prime is 669350550778601. The reversal of 669350550778596 is 695877055053966.

669350550778596 is a `hidden beast` number, since 6 + 6 + 9 + 3 + 5 + 0 + 550 + 7 + 7 + 8 + 59 + 6 = 666.

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 63 ways as a sum of consecutive naturals, for example, 18762136 + ... + 41118351.

It is an arithmetic number, because the mean of its divisors is an integer number (9682674909600).

Almost surely, 2^{669350550778596} is an apocalyptic number.

It is an amenable number.

669350550778596 is an abundant number, since it is smaller than the sum of its proper divisors (1189723031864604).

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

669350550778596 is a wasteful number, since it uses less digits than its factorization.

669350550778596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59880655 (or 59880647 counting only the distinct ones).

The product of its (nonzero) digits is 12859560000, while the sum is 81.

The spelling of 669350550778596 in words is "six hundred sixty-nine trillion, three hundred fifty billion, five hundred fifty million, seven hundred seventy-eight thousand, five hundred ninety-six".