669133975 has 12 divisors (see below), whose sum is σ = 831927160. Its totient is φ = 533887200.

The previous prime is 669133939. The next prime is 669134021. The reversal of 669133975 is 579331966.

It is not a de Polignac number, because 669133975 - 2¹⁹ = 668609687 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25836 + ... + 44785.

Almost surely, 2^669133975 is an apocalyptic number.

669133975 is a deficient number, since it is larger than the sum of its proper divisors (162793185).

669133975 is a wasteful number, since it uses less digits than its factorization.

669133975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71010 (or 71005 counting only the distinct ones).

The product of its digits is 918540, while the sum is 49.

The square root of 669133975 is about 25867.6240694811. The cubic root of 669133975 is about 874.6568341390.

The spelling of 669133975 in words is "six hundred sixty-nine million, one hundred thirty-three thousand, nine hundred seventy-five".