5631382656 has 64 divisors (see below), whose sum is σ = 16620410400. Its totient is φ = 1877126400.

The previous prime is 5631382639. The next prime is 5631382657. The reversal of 5631382656 is 6562831365.

5631382656 is a `hidden beast` number, since 5 + 631 + 3 + 8 + 2 + 6 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×5631382656² = 63424941236595228672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5631382657) 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, 811270 + ... + 818181.

Almost surely, 2^5631382656 is an apocalyptic number.

It is an amenable number.

5631382656 is an abundant number, since it is smaller than the sum of its proper divisors (10989027744).

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

5631382656 is a wasteful number, since it uses less digits than its factorization.

5631382656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629474 (or 1629456 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The square root of 5631382656 is about 75042.5389762367. The cubic root of 5631382656 is about 1779.1190624681.

The spelling of 5631382656 in words is "five billion, six hundred thirty-one million, three hundred eighty-two thousand, six hundred fifty-six".