32056631640 has 144 divisors (see below), whose sum is σ = 114516511200. Its totient is φ = 7771294080.

The previous prime is 32056631609. The next prime is 32056631647. The reversal of 32056631640 is 4613665023.

32056631640 is a `hidden beast` number, since 3 + 2 + 0 + 5 + 6 + 6 + 3 + 1 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 32056631595 and 32056631604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32056631647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 324400 + ... + 411519.

It is an arithmetic number, because the mean of its divisors is an integer number (795253550).

Almost surely, 2^32056631640 is an apocalyptic number.

32056631640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32056631640 is an abundant number, since it is smaller than the sum of its proper divisors (82459879560).

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

32056631640 is a wasteful number, since it uses less digits than its factorization.

32056631640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735958 (or 735940 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 32056631640 in words is "thirty-two billion, fifty-six million, six hundred thirty-one thousand, six hundred forty".