669175516 has 12 divisors (see below), whose sum is σ = 1232691880. Its totient is φ = 316977840.

The previous prime is 669175511. The next prime is 669175523. The reversal of 669175516 is 615571966.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669175511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4402395 + ... + 4402546.

Almost surely, 2^669175516 is an apocalyptic number.

It is an amenable number.

669175516 is a deficient number, since it is larger than the sum of its proper divisors (563516364).

669175516 is a wasteful number, since it uses less digits than its factorization.

669175516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8804964 (or 8804962 counting only the distinct ones).

The product of its digits is 340200, while the sum is 46.

The square root of 669175516 is about 25868.4270105470. The cubic root of 669175516 is about 874.6749338365.

The spelling of 669175516 in words is "six hundred sixty-nine million, one hundred seventy-five thousand, five hundred sixteen".