556166667290 has 16 divisors (see below), whose sum is σ = 1078107693768. Its totient is φ = 205353846336.

The previous prime is 556166667247. The next prime is 556166667299. The reversal of 556166667290 is 92766661655.

It is a happy number.

556166667290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 338117827441 + 218048839849 = 581479^2 + 466957^2 .

It is not an unprimeable number, because it can be changed into a prime (556166667299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2139102437 + ... + 2139102696.

Almost surely, 2^556166667290 is an apocalyptic number.

556166667290 is a deficient number, since it is larger than the sum of its proper divisors (521941026478).

556166667290 is a wasteful number, since it uses less digits than its factorization.

556166667290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4278205153.

The product of its (nonzero) digits is 24494400, while the sum is 59.

The spelling of 556166667290 in words is "five hundred fifty-six billion, one hundred sixty-six million, six hundred sixty-seven thousand, two hundred ninety".