6369886656 has 280 divisors, whose sum is σ = 22327636320. Its totient is φ = 1756919808.

The previous prime is 6369886637. The next prime is 6369886669. The reversal of 6369886656 is 6566889636.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 6369886593 and 6369886602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1049326 + ... + 1055378.

Almost surely, 2^6369886656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6369886656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11163818160).

6369886656 is an abundant number, since it is smaller than the sum of its proper divisors (15957749664).

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

6369886656 is a wasteful number, since it uses less digits than its factorization.

6369886656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6113 (or 6094 counting only the distinct ones).

The product of its digits is 67184640, while the sum is 63.

The square root of 6369886656 is about 79811.5696876086. The cubic root of 6369886656 is about 1853.7190009923.

It can be divided in two parts, 6369 and 886656, that added together give a square (893025 = 945²).

The spelling of 6369886656 in words is "six billion, three hundred sixty-nine million, eight hundred eighty-six thousand, six hundred fifty-six".