622665656 has 32 divisors (see below), whose sum is σ = 1177719600. Its totient is φ = 308620800.

The previous prime is 622665653. The next prime is 622665709. The reversal of 622665656 is 656566226.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622665653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517856 + ... + 519056.

Almost surely, 2^622665656 is an apocalyptic number.

It is an amenable number.

622665656 is a deficient number, since it is larger than the sum of its proper divisors (555053944).

622665656 is a wasteful number, since it uses less digits than its factorization.

622665656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719 (or 1715 counting only the distinct ones).

The product of its digits is 777600, while the sum is 44.

The square root of 622665656 is about 24953.2694451048. The cubic root of 622665656 is about 853.9221994732.

The spelling of 622665656 in words is "six hundred twenty-two million, six hundred sixty-five thousand, six hundred fifty-six".