12556316770 has 16 divisors (see below), whose sum is σ = 22604144760. Its totient is φ = 5021910144.

The previous prime is 12556316767. The next prime is 12556316783. The reversal of 12556316770 is 7761365521.

It can be written as a sum of positive squares in 4 ways, for example, as 11283325729 + 1272991041 = 106223^2 + 35679^2 .

It is a super-2 number, since 2×12556316770² (a number of 21 digits) contains 22 as substring.

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, 13534 + ... + 159046.

Almost surely, 2^12556316770 is an apocalyptic number.

12556316770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12556316770 is a deficient number, since it is larger than the sum of its proper divisors (10047827990).

12556316770 is a wasteful number, since it uses less digits than its factorization.

12556316770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154149.

The product of its (nonzero) digits is 264600, while the sum is 43.

The spelling of 12556316770 in words is "twelve billion, five hundred fifty-six million, three hundred sixteen thousand, seven hundred seventy".