1264083656 has 32 divisors (see below), whose sum is σ = 2604523680. Its totient is φ = 570384000.

The previous prime is 1264083641. The next prime is 1264083701. The reversal of 1264083656 is 6563804621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40370 + ... + 64481.

It is an arithmetic number, because the mean of its divisors is an integer number (81391365).

Almost surely, 2^1264083656 is an apocalyptic number.

It is an amenable number.

1264083656 is an abundant number, since it is smaller than the sum of its proper divisors (1340440024).

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

1264083656 is a wasteful number, since it uses less digits than its factorization.

1264083656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105005 (or 105001 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 1264083656 is about 35553.9541542147. The cubic root of 1264083656 is about 1081.2478877034.

The spelling of 1264083656 in words is "one billion, two hundred sixty-four million, eighty-three thousand, six hundred fifty-six".