6370756866 has 128 divisors (see below), whose sum is σ = 15225292800. Its totient is φ = 1970749440.

The previous prime is 6370756853. The next prime is 6370756883. The reversal of 6370756866 is 6686570736.

6370756866 is a `hidden beast` number, since 6 + 3 + 70 + 7 + 568 + 6 + 6 = 666.

It is a super-2 number, since 2×6370756866² = 81173086091372283912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4520770 + ... + 4522178.

It is an arithmetic number, because the mean of its divisors is an integer number (118947600).

Almost surely, 2^6370756866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6370756866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7612646400).

6370756866 is an abundant number, since it is smaller than the sum of its proper divisors (8854535934).

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

6370756866 is a wasteful number, since it uses less digits than its factorization.

6370756866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561 (or 1555 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The square root of 6370756866 is about 79817.0211546384. The cubic root of 6370756866 is about 1853.8034112519.

The spelling of 6370756866 in words is "six billion, three hundred seventy million, seven hundred fifty-six thousand, eight hundred sixty-six".