696655664 has 20 divisors (see below), whose sum is σ = 1350502104. Its totient is φ = 348139008.

The previous prime is 696655651. The next prime is 696655669. The reversal of 696655664 is 466556696.

It is a super-2 number, since 2×696655664² = 970658228366561792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (696655669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21479 + ... + 43065.

Almost surely, 2^696655664 is an apocalyptic number.

It is an amenable number.

696655664 is a deficient number, since it is larger than the sum of its proper divisors (653846440).

696655664 is a wasteful number, since it uses less digits than its factorization.

696655664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23612 (or 23606 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 53.

The square root of 696655664 is about 26394.2354312452. The cubic root of 696655664 is about 886.4877203716.

The spelling of 696655664 in words is "six hundred ninety-six million, six hundred fifty-five thousand, six hundred sixty-four".