55566110655 has 36 divisors (see below), whose sum is σ = 105866462520. Its totient is φ = 26941141920.

The previous prime is 55566110653. The next prime is 55566110657. The reversal of 55566110655 is 55601166555.

It is an interprime number because it is at equal distance from previous prime (55566110653) and next prime (55566110657).

It is not a de Polignac number, because 55566110655 - 2¹ = 55566110653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55566110655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55566110651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5097045 + ... + 5107934.

It is an arithmetic number, because the mean of its divisors is an integer number (2940735070).

Almost surely, 2^55566110655 is an apocalyptic number.

55566110655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55566110655 is a deficient number, since it is larger than the sum of its proper divisors (50300351865).

55566110655 is a wasteful number, since it uses less digits than its factorization.

55566110655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10205012 (or 10204998 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 45.

The spelling of 55566110655 in words is "fifty-five billion, five hundred sixty-six million, one hundred ten thousand, six hundred fifty-five".