665214662 has 16 divisors (see below), whose sum is σ = 1200387840. Its totient is φ = 270087048.

The previous prime is 665214653. The next prime is 665214701. The reversal of 665214662 is 266412566.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1250138 + ... + 1250669.

It is an arithmetic number, because the mean of its divisors is an integer number (75024240).

Almost surely, 2^665214662 is an apocalyptic number.

665214662 is a deficient number, since it is larger than the sum of its proper divisors (535173178).

665214662 is a wasteful number, since it uses less digits than its factorization.

665214662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500835.

The product of its digits is 103680, while the sum is 38.

The square root of 665214662 is about 25791.7556982847. The cubic root of 665214662 is about 872.9457822763.

The spelling of 665214662 in words is "six hundred sixty-five million, two hundred fourteen thousand, six hundred sixty-two".