18833537055 has 64 divisors (see below), whose sum is σ = 31621943808. Its totient is φ = 9562590720.

The previous prime is 18833537053. The next prime is 18833537059. The reversal of 18833537055 is 55073533881.

It is a happy number.

It is not a de Polignac number, because 18833537055 - 2¹ = 18833537053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18833536995 and 18833537013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18833537053) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4927045 + ... + 4930865.

It is an arithmetic number, because the mean of its divisors is an integer number (494092872).

Almost surely, 2^18833537055 is an apocalyptic number.

18833537055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18833537055 is a deficient number, since it is larger than the sum of its proper divisors (12788406753).

18833537055 is a wasteful number, since it uses less digits than its factorization.

18833537055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4056.

The product of its (nonzero) digits is 1512000, while the sum is 48.

The spelling of 18833537055 in words is "eighteen billion, eight hundred thirty-three million, five hundred thirty-seven thousand, fifty-five".