18880488055 has 32 divisors (see below), whose sum is σ = 27774835200. Its totient is φ = 12123914880.

The previous prime is 18880488049. The next prime is 18880488091. The reversal of 18880488055 is 55088408881.

It is not a de Polignac number, because 18880488055 - 2³ = 18880488047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a junction number, because it is equal to n+sod(n) for n = 18880487987 and 18880488005.

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 31 ways as a sum of consecutive naturals, for example, 557605 + ... + 590494.

It is an arithmetic number, because the mean of its divisors is an integer number (867963600).

Almost surely, 2^18880488055 is an apocalyptic number.

18880488055 is a deficient number, since it is larger than the sum of its proper divisors (8894347145).

18880488055 is a wasteful number, since it uses less digits than its factorization.

18880488055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148151.

The product of its (nonzero) digits is 3276800, while the sum is 55.

The spelling of 18880488055 in words is "eighteen billion, eight hundred eighty million, four hundred eighty-eight thousand, fifty-five".