55110105660 has 48 divisors (see below), whose sum is σ = 154495022976. Its totient is φ = 14678244672.

The previous prime is 55110105559. The next prime is 55110105671. The reversal of 55110105660 is 6650101155.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 505702 + ... + 604941.

It is an arithmetic number, because the mean of its divisors is an integer number (3218646312).

Almost surely, 2^55110105660 is an apocalyptic number.

It is an amenable number.

55110105660 is an abundant number, since it is smaller than the sum of its proper divisors (99384917316).

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

55110105660 is a wasteful number, since it uses less digits than its factorization.

55110105660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111482 (or 1111480 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 55110105660 in words is "fifty-five billion, one hundred ten million, one hundred five thousand, six hundred sixty".