555156621068 has 12 divisors (see below), whose sum is σ = 1110313242192. Its totient is φ = 237924266160.

The previous prime is 555156621067. The next prime is 555156621091. The reversal of 555156621068 is 860126651555.

555156621068 is an admirable number.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (555156621067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9913511063 + ... + 9913511118.

It is an arithmetic number, because the mean of its divisors is an integer number (92526103516).

Almost surely, 2^555156621068 is an apocalyptic number.

It is an amenable number.

555156621068 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

555156621068 is a wasteful number, since it uses less digits than its factorization.

555156621068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19827022192 (or 19827022190 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 50.

The spelling of 555156621068 in words is "five hundred fifty-five billion, one hundred fifty-six million, six hundred twenty-one thousand, sixty-eight".