662164566 has 32 divisors (see below), whose sum is σ = 1524579840. Its totient is φ = 187807296.

The previous prime is 662164553. The next prime is 662164567. The reversal of 662164566 is 665461266.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662164567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51786 + ... + 63293.

It is an arithmetic number, because the mean of its divisors is an integer number (47643120).

Almost surely, 2^662164566 is an apocalyptic number.

662164566 is an abundant number, since it is smaller than the sum of its proper divisors (862415274).

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

662164566 is a wasteful number, since it uses less digits than its factorization.

662164566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115228.

The product of its digits is 311040, while the sum is 42.

The square root of 662164566 is about 25732.5584814258. The cubic root of 662164566 is about 871.6095478262.

The spelling of 662164566 in words is "six hundred sixty-two million, one hundred sixty-four thousand, five hundred sixty-six".