1556550151056 has 30 divisors (see below), whose sum is σ = 4356178548150. Its totient is φ = 518850050304.

The previous prime is 1556550151033. The next prime is 1556550151099. The reversal of 1556550151056 is 6501510556551.

1556550151056 is a `hidden beast` number, since 15 + 565 + 5 + 0 + 15 + 10 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1412256531456 + 144293619600 = 1188384^2 + 379860^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5404687881 + ... + 5404688168.

It is an arithmetic number, because the mean of its divisors is an integer number (145205951605).

Almost surely, 2^{1556550151056} is an apocalyptic number.

1556550151056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1556550151056 is an abundant number, since it is smaller than the sum of its proper divisors (2799628397094).

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

1556550151056 is a wasteful number, since it uses less digits than its factorization.

1556550151056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10809376063 (or 10809376054 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 45.

The spelling of 1556550151056 in words is "one trillion, five hundred fifty-six billion, five hundred fifty million, one hundred fifty-one thousand, fifty-six".