556666556100 has 36 divisors (see below), whose sum is σ = 1610621903184. Its totient is φ = 148444414880.

The previous prime is 556666556099. The next prime is 556666556119. The reversal of 556666556100 is 1655666655.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 927777294 + ... + 927777893.

Almost surely, 2^556666556100 is an apocalyptic number.

556666556100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

556666556100 is an abundant number, since it is smaller than the sum of its proper divisors (1053955347084).

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

556666556100 is a wasteful number, since it uses less digits than its factorization.

556666556100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855555204 (or 1855555197 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 51.

The spelling of 556666556100 in words is "five hundred fifty-six billion, six hundred sixty-six million, five hundred fifty-six thousand, one hundred".