556065560655 has 128 divisors (see below), whose sum is σ = 1098244915200. Its totient is φ = 264686083200.

The previous prime is 556065560653. The next prime is 556065560689.

556065560655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 556065560655 - 2¹ = 556065560653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556065560651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 25187932 + ... + 25209998.

It is an arithmetic number, because the mean of its divisors is an integer number (8580038400).

Almost surely, 2^556065560655 is an apocalyptic number.

556065560655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

556065560655 is a deficient number, since it is larger than the sum of its proper divisors (542179354545).

556065560655 is a wasteful number, since it uses less digits than its factorization.

556065560655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22402 (or 22396 counting only the distinct ones).

The product of its (nonzero) digits is 20250000, while the sum is 54.

The spelling of 556065560655 in words is "five hundred fifty-six billion, sixty-five million, five hundred sixty thousand, six hundred fifty-five".