1266266012 has 96 divisors (see below), whose sum is σ = 2704181760. Its totient is φ = 511723520.

The previous prime is 1266266009. The next prime is 1266266051. The reversal of 1266266012 is 2106626621.

It is a super-2 number, since 2×1266266012² = 3206859226292768288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1266266012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1530743 + ... + 1531569.

It is an arithmetic number, because the mean of its divisors is an integer number (28168560).

Almost surely, 2^1266266012 is an apocalyptic number.

It is an amenable number.

1266266012 is an abundant number, since it is smaller than the sum of its proper divisors (1437915748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1266266012 is a wasteful number, since it uses less digits than its factorization.

1266266012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 1266266012 is about 35584.6316827925. The cubic root of 1266266012 is about 1081.8697640507.

The spelling of 1266266012 in words is "one billion, two hundred sixty-six million, two hundred sixty-six thousand, twelve".