556324001266 has 48 divisors (see below), whose sum is σ = 955271313792. Its totient is φ = 240804424800.

The previous prime is 556324001263. The next prime is 556324001281. The reversal of 556324001266 is 662100423655.

It is a happy number.

It is a super-2 number, since 2×556324001266² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (556324001263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1643431 + ... + 1952821.

It is an arithmetic number, because the mean of its divisors is an integer number (19901485704).

Almost surely, 2^556324001266 is an apocalyptic number.

556324001266 is a deficient number, since it is larger than the sum of its proper divisors (398947312526).

556324001266 is a wasteful number, since it uses less digits than its factorization.

556324001266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309535 (or 309488 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 556324001266 in words is "five hundred fifty-six billion, three hundred twenty-four million, one thousand, two hundred sixty-six".