662642588338 has 16 divisors (see below), whose sum is σ = 1066018864320. Its totient is φ = 307961003376.

The previous prime is 662642588323. The next prime is 662642588341. The reversal of 662642588338 is 833885246266.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 164507070 + ... + 164511097.

It is an arithmetic number, because the mean of its divisors is an integer number (66626179020).

Almost surely, 2^662642588338 is an apocalyptic number.

662642588338 is a deficient number, since it is larger than the sum of its proper divisors (403376275982).

662642588338 is a wasteful number, since it uses less digits than its factorization.

662642588338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329018241.

The product of its digits is 79626240, while the sum is 61.

The spelling of 662642588338 in words is "six hundred sixty-two billion, six hundred forty-two million, five hundred eighty-eight thousand, three hundred thirty-eight".