1272662323560 has 48 divisors (see below), whose sum is σ = 4136152552740. Its totient is φ = 339376619520.

The previous prime is 1272662323547. The next prime is 1272662323601. The reversal of 1272662323560 is 653232662721.

1272662323560 is a `hidden beast` number, since 1 + 2 + 7 + 2 + 6 + 62 + 3 + 23 + 560 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1270773725796 + 1888597764 = 1127286^2 + 43458^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1767586201 + ... + 1767586920.

Almost surely, 2^{1272662323560} is an apocalyptic number.

1272662323560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1272662323560 is an abundant number, since it is smaller than the sum of its proper divisors (2863490229180).

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

1272662323560 is a wasteful number, since it uses less digits than its factorization.

1272662323560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3535173138 (or 3535173131 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 1272662323560 in words is "one trillion, two hundred seventy-two billion, six hundred sixty-two million, three hundred twenty-three thousand, five hundred sixty".