640200764106 has 24 divisors (see below), whose sum is σ = 1389009664224. Its totient is φ = 213106714920.

The previous prime is 640200764101. The next prime is 640200764111. The reversal of 640200764106 is 601467002046.

640200764106 is a `hidden beast` number, since 6 + 4 + 0 + 2 + 0 + 0 + 7 + 641 + 0 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (640200764101) and next prime (640200764111).

It is not an unprimeable number, because it can be changed into a prime (640200764101) 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 11 ways as a sum of consecutive naturals, for example, 24448200 + ... + 24474371.

It is an arithmetic number, because the mean of its divisors is an integer number (57875402676).

Almost surely, 2^640200764106 is an apocalyptic number.

640200764106 is an abundant number, since it is smaller than the sum of its proper divisors (748808900118).

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

640200764106 is a wasteful number, since it uses less digits than its factorization.

640200764106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48923306 (or 48923303 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 640200764106 in words is "six hundred forty billion, two hundred million, seven hundred sixty-four thousand, one hundred six".