556655556655 has 64 divisors (see below), whose sum is σ = 763563024000. Its totient is φ = 385862400000.

The previous prime is 556655556607. The next prime is 556655556659.

556655556655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 556655556655 - 2²³ = 556647168047 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556655556659) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56217205 + ... + 56227105.

It is an arithmetic number, because the mean of its divisors is an integer number (11930672250).

Almost surely, 2^556655556655 is an apocalyptic number.

556655556655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

556655556655 is a deficient number, since it is larger than the sum of its proper divisors (206907467345).

556655556655 is a wasteful number, since it uses less digits than its factorization.

556655556655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10396.

The product of its digits is 506250000, while the sum is 64.

The spelling of 556655556655 in words is "five hundred fifty-six billion, six hundred fifty-five million, five hundred fifty-six thousand, six hundred fifty-five".