640503403362 has 48 divisors (see below), whose sum is σ = 1475538405120. Its totient is φ = 200101458816.

The previous prime is 640503403361. The next prime is 640503403387. The reversal of 640503403362 is 263304305046.

640503403362 is a `hidden beast` number, since 64 + 0 + 503 + 4 + 0 + 33 + 62 = 666.

It is not an unprimeable number, because it can be changed into a prime (640503403361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4305838 + ... + 4452105.

It is an arithmetic number, because the mean of its divisors is an integer number (30740383440).

Almost surely, 2^640503403362 is an apocalyptic number.

640503403362 is an abundant number, since it is smaller than the sum of its proper divisors (835035001758).

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

640503403362 is a wasteful number, since it uses less digits than its factorization.

640503403362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8758207 (or 8758204 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

The spelling of 640503403362 in words is "six hundred forty billion, five hundred three million, four hundred three thousand, three hundred sixty-two".