669695596966 has 16 divisors (see below), whose sum is σ = 1095921867600. Its totient is φ = 304391438080.

The previous prime is 669695596937. The next prime is 669695597017.

669695596966 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 669695596966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339391 + ... + 1206058.

It is an arithmetic number, because the mean of its divisors is an integer number (68495116725).

Almost surely, 2^669695596966 is an apocalyptic number.

669695596966 is a deficient number, since it is larger than the sum of its proper divisors (426226270634).

669695596966 is a wasteful number, since it uses less digits than its factorization.

669695596966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565159.

The product of its digits is 7652750400, while the sum is 82.

The spelling of 669695596966 in words is "six hundred sixty-nine billion, six hundred ninety-five million, five hundred ninety-six thousand, nine hundred sixty-six".