556156400355 has 48 divisors (see below), whose sum is σ = 971572402944. Its totient is φ = 294289120320.

The previous prime is 556156400351. The next prime is 556156400377. The reversal of 556156400355 is 553004651655.

556156400355 is a `hidden beast` number, since 5 + 56 + 1 + 564 + 0 + 0 + 35 + 5 = 666.

It is not a de Polignac number, because 556156400355 - 2² = 556156400351 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 556156400355.

It is not an unprimeable number, because it can be changed into a prime (556156400351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42360802 + ... + 42373928.

It is an arithmetic number, because the mean of its divisors is an integer number (20241091728).

Almost surely, 2^556156400355 is an apocalyptic number.

556156400355 is a deficient number, since it is larger than the sum of its proper divisors (415416002589).

556156400355 is a wasteful number, since it uses less digits than its factorization.

556156400355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20456 (or 20453 counting only the distinct ones).

The product of its (nonzero) digits is 1350000, while the sum is 45.

The spelling of 556156400355 in words is "five hundred fifty-six billion, one hundred fifty-six million, four hundred thousand, three hundred fifty-five".