669140515930 has 16 divisors (see below), whose sum is σ = 1256820447744. Its totient is φ = 256018979920.

The previous prime is 669140515919. The next prime is 669140515951. The reversal of 669140515930 is 39515041966.

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, 1454653066 + ... + 1454653525.

It is an arithmetic number, because the mean of its divisors is an integer number (78551277984).

Almost surely, 2^669140515930 is an apocalyptic number.

669140515930 is a deficient number, since it is larger than the sum of its proper divisors (587679931814).

669140515930 is a wasteful number, since it uses less digits than its factorization.

669140515930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2909306621.

The product of its (nonzero) digits is 874800, while the sum is 49.

The spelling of 669140515930 in words is "six hundred sixty-nine billion, one hundred forty million, five hundred fifteen thousand, nine hundred thirty".