695659966 has 4 divisors (see below), whose sum is σ = 1043489952. Its totient is φ = 347829982.

The previous prime is 695659963. The next prime is 695659999. The reversal of 695659966 is 669956596.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (695659961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173914990 + ... + 173914993.

It is an arithmetic number, because the mean of its divisors is an integer number (260872488).

Almost surely, 2^695659966 is an apocalyptic number.

695659966 is a deficient number, since it is larger than the sum of its proper divisors (347829986).

695659966 is a wasteful number, since it uses less digits than its factorization.

695659966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347829985.

The product of its digits is 23619600, while the sum is 61.

The square root of 695659966 is about 26375.3666514799. The cubic root of 695659966 is about 886.0651802503.

The spelling of 695659966 in words is "six hundred ninety-five million, six hundred fifty-nine thousand, nine hundred sixty-six".