669267787762966 has 32 divisors (see below), whose sum is σ = 1148263945920000. Its totient is φ = 286592128992000.

The previous prime is 669267787762939. The next prime is 669267787763219.

669267787762966 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×669267787762966² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718751391 + ... + 719681941.

It is an arithmetic number, because the mean of its divisors is an integer number (35883248310000).

Almost surely, 2^{669267787762966} is an apocalyptic number.

669267787762966 is a deficient number, since it is larger than the sum of its proper divisors (478996158157034).

669267787762966 is a wasteful number, since it uses less digits than its factorization.

669267787762966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972940.

The product of its digits is 290358577152, while the sum is 94.

The spelling of 669267787762966 in words is "six hundred sixty-nine trillion, two hundred sixty-seven billion, seven hundred eighty-seven million, seven hundred sixty-two thousand, nine hundred sixty-six".