1266956972 has 12 divisors (see below), whose sum is σ = 2217534816. Its totient is φ = 633375600.

The previous prime is 1266956969. The next prime is 1266956981. The reversal of 1266956972 is 2796596621.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6458 + ... + 50750.

It is an arithmetic number, because the mean of its divisors is an integer number (184794568).

Almost surely, 2^1266956972 is an apocalyptic number.

It is an amenable number.

1266956972 is a deficient number, since it is larger than the sum of its proper divisors (950577844).

1266956972 is a wasteful number, since it uses less digits than its factorization.

1266956972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51448 (or 51446 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 53.

The square root of 1266956972 is about 35594.3390442919. The cubic root of 1266956972 is about 1082.0665085996.

The spelling of 1266956972 in words is "one billion, two hundred sixty-six million, nine hundred fifty-six thousand, nine hundred seventy-two".