6390166352800 has 72 divisors (see below), whose sum is σ = 16517640326796. Its totient is φ = 2405709680640.

The previous prime is 6390166352771. The next prime is 6390166352827. The reversal of 6390166352800 is 82536610936.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3809632541584 + 2580533811216 = 1951828^2 + 1606404^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234918987 + ... + 234946186.

Almost surely, 2^{6390166352800} is an apocalyptic number.

It is an amenable number.

6390166352800 is an abundant number, since it is smaller than the sum of its proper divisors (10127473973996).

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

6390166352800 is a wasteful number, since it uses less digits than its factorization.

6390166352800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469865210 (or 469865197 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 6390166352800 in words is "six trillion, three hundred ninety billion, one hundred sixty-six million, three hundred fifty-two thousand, eight hundred".