565555555506 has 16 divisors (see below), whose sum is σ = 1131118640064. Its totient is φ = 188517263664.

The previous prime is 565555555469. The next prime is 565555555531. The reversal of 565555555506 is 605555555565.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1306435 + ... + 1684601.

It is an arithmetic number, because the mean of its divisors is an integer number (70694915004).

Almost surely, 2^565555555506 is an apocalyptic number.

565555555506 is an abundant number, since it is smaller than the sum of its proper divisors (565563084558).

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

565555555506 is a wasteful number, since it uses less digits than its factorization.

565555555506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627425.

The product of its (nonzero) digits is 70312500, while the sum is 57.

The spelling of 565555555506 in words is "five hundred sixty-five billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred six".