6366628658880 has 672 divisors, whose sum is σ = 26569932940800. Its totient is φ = 1430558889984.

The previous prime is 6366628658879. The next prime is 6366628659019. The reversal of 6366628658880 is 888568266636.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 6366628658799 and 6366628658808.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 24850797 + ... + 25105683.

Almost surely, 2^{6366628658880} is an apocalyptic number.

6366628658880 is a gapful number since it is divisible by the number (60) 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 6366628658880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13284966470400).

6366628658880 is an abundant number, since it is smaller than the sum of its proper divisors (20203304281920).

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

6366628658880 is a wasteful number, since it uses less digits than its factorization.

6366628658880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254986 (or 254963 counting only the distinct ones).

The product of its (nonzero) digits is 955514880, while the sum is 72.

The spelling of 6366628658880 in words is "six trillion, three hundred sixty-six billion, six hundred twenty-eight million, six hundred fifty-eight thousand, eight hundred eighty".