695608664 has 8 divisors (see below), whose sum is σ = 1304266260. Its totient is φ = 347804328.

The previous prime is 695608657. The next prime is 695608687. The reversal of 695608664 is 466806596.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43475534 + ... + 43475549.

Almost surely, 2^695608664 is an apocalyptic number.

It is an amenable number.

695608664 is a deficient number, since it is larger than the sum of its proper divisors (608657596).

695608664 is a wasteful number, since it uses less digits than its factorization.

695608664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86951089 (or 86951085 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 50.

The square root of 695608664 is about 26374.3940973058. The cubic root of 695608664 is about 886.0433985200.

The spelling of 695608664 in words is "six hundred ninety-five million, six hundred eight thousand, six hundred sixty-four".