18223010055 has 48 divisors (see below), whose sum is σ = 33000117696. Its totient is φ = 9285027840.

The previous prime is 18223010011. The next prime is 18223010059. The reversal of 18223010055 is 55001032281.

It is a happy number.

It is not a de Polignac number, because 18223010055 - 2⁸ = 18223009799 is a prime.

It is a super-2 number, since 2×18223010055² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18223010059) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 872535 + ... + 893175.

It is an arithmetic number, because the mean of its divisors is an integer number (687502452).

Almost surely, 2^18223010055 is an apocalyptic number.

18223010055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18223010055 is a deficient number, since it is larger than the sum of its proper divisors (14777107641).

18223010055 is a wasteful number, since it uses less digits than its factorization.

18223010055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21528 (or 21525 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The spelling of 18223010055 in words is "eighteen billion, two hundred twenty-three million, ten thousand, fifty-five".