669237600120 has 32 divisors (see below), whose sum is σ = 2007712800720. Its totient is φ = 178463360000.

The previous prime is 669237600079. The next prime is 669237600121. The reversal of 669237600120 is 21006732966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669237600121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2788489881 + ... + 2788490120.

Almost surely, 2^669237600120 is an apocalyptic number.

669237600120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

669237600120 is an abundant number, since it is smaller than the sum of its proper divisors (1338475200600).

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

669237600120 is a wasteful number, since it uses less digits than its factorization.

669237600120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5576980015 (or 5576980011 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 669237600120 in words is "six hundred sixty-nine billion, two hundred thirty-seven million, six hundred thousand, one hundred twenty".