669940162 has 32 divisors (see below), whose sum is σ = 1053907200. Its totient is φ = 319135488.

The previous prime is 669940127. The next prime is 669940177. The reversal of 669940162 is 261049966.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 626164 + ... + 627232.

It is an arithmetic number, because the mean of its divisors is an integer number (32934600).

Almost surely, 2^669940162 is an apocalyptic number.

669940162 is a deficient number, since it is larger than the sum of its proper divisors (383967038).

669940162 is a wasteful number, since it uses less digits than its factorization.

669940162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 669940162 is about 25883.2023134696. The cubic root of 669940162 is about 875.0079616146.

The spelling of 669940162 in words is "six hundred sixty-nine million, nine hundred forty thousand, one hundred sixty-two".