641656152 has 48 divisors (see below), whose sum is σ = 1767285000. Its totient is φ = 210258816.

The previous prime is 641656129. The next prime is 641656193. The reversal of 641656152 is 251656146.

641656152 is a `hidden beast` number, since 6 + 41 + 6 + 561 + 52 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71277 + ... + 79772.

Almost surely, 2^641656152 is an apocalyptic number.

It is an amenable number.

641656152 is an abundant number, since it is smaller than the sum of its proper divisors (1125628848).

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

641656152 is a wasteful number, since it uses less digits than its factorization.

641656152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151120 (or 151113 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 641656152 is about 25330.9327108182. The cubic root of 641656152 is about 862.5165839281.

The spelling of 641656152 in words is "six hundred forty-one million, six hundred fifty-six thousand, one hundred fifty-two".