669433155 has 16 divisors (see below), whose sum is σ = 1073577120. Its totient is φ = 356203008.

The previous prime is 669433133. The next prime is 669433183. The reversal of 669433155 is 551334966.

It is not a de Polignac number, because 669433155 - 2⁸ = 669432899 is a prime.

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, 45040 + ... + 58029.

It is an arithmetic number, because the mean of its divisors is an integer number (67098570).

Almost surely, 2^669433155 is an apocalyptic number.

669433155 is a deficient number, since it is larger than the sum of its proper divisors (404143965).

669433155 is a wasteful number, since it uses less digits than its factorization.

669433155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103510.

The product of its digits is 291600, while the sum is 42.

The square root of 669433155 is about 25873.4063277335. The cubic root of 669433155 is about 874.7871721833.

The spelling of 669433155 in words is "six hundred sixty-nine million, four hundred thirty-three thousand, one hundred fifty-five".