622542664 has 16 divisors (see below), whose sum is σ = 1189292220. Its totient is φ = 305398080.

The previous prime is 622542653. The next prime is 622542671. The reversal of 622542664 is 466245226.

622542664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 617920164 + 4622500 = 24858^2 + 2150^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 733707 + ... + 734554.

Almost surely, 2^622542664 is an apocalyptic number.

It is an amenable number.

622542664 is a deficient number, since it is larger than the sum of its proper divisors (566749556).

622542664 is a wasteful number, since it uses less digits than its factorization.

622542664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468320 (or 1468316 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

The square root of 622542664 is about 24950.8048767971. The cubic root of 622542664 is about 853.8659721255.

The spelling of 622542664 in words is "six hundred twenty-two million, five hundred forty-two thousand, six hundred sixty-four".