669112704 has 256 divisors, whose sum is σ = 2174558400. Its totient is φ = 201277440.

The previous prime is 669112669. The next prime is 669112709. The reversal of 669112704 is 407211966.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669112709) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2381044 + ... + 2381324.

Almost surely, 2^669112704 is an apocalyptic number.

669112704 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 669112704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1087279200).

669112704 is an abundant number, since it is smaller than the sum of its proper divisors (1505445696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

669112704 is a wasteful number, since it uses less digits than its factorization.

669112704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 669112704 is about 25867.2129151944. The cubic root of 669112704 is about 874.6475659290.

The spelling of 669112704 in words is "six hundred sixty-nine million, one hundred twelve thousand, seven hundred four".