669789116 has 24 divisors (see below), whose sum is σ = 1181596416. Its totient is φ = 332201520.

The previous prime is 669789073. The next prime is 669789139. The reversal of 669789116 is 611987966.

It is a super-2 number, since 2×669789116² = 897234919824122912, which contains 22 as substring.

It is a congruent number.

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, 291725 + ... + 294011.

It is an arithmetic number, because the mean of its divisors is an integer number (49233184).

Almost surely, 2^669789116 is an apocalyptic number.

It is an amenable number.

669789116 is a deficient number, since it is larger than the sum of its proper divisors (511807300).

669789116 is a wasteful number, since it uses less digits than its factorization.

669789116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849 (or 2847 counting only the distinct ones).

The product of its digits is 979776, while the sum is 53.

The square root of 669789116 is about 25880.2843106485. The cubic root of 669789116 is about 874.9421963448.

The spelling of 669789116 in words is "six hundred sixty-nine million, seven hundred eighty-nine thousand, one hundred sixteen".