18597227055 has 32 divisors (see below), whose sum is σ = 32905301760. Its totient is φ = 8893313280.

The previous prime is 18597227053. The next prime is 18597227063. The reversal of 18597227055 is 55072279581.

It is not a de Polignac number, because 18597227055 - 2¹ = 18597227053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18597226989 and 18597227007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18597227053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 759945 + ... + 784034.

It is an arithmetic number, because the mean of its divisors is an integer number (1028290680).

Almost surely, 2^18597227055 is an apocalyptic number.

18597227055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18597227055 is a deficient number, since it is larger than the sum of its proper divisors (14308074705).

18597227055 is a wasteful number, since it uses less digits than its factorization.

18597227055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544071.

The product of its (nonzero) digits is 1764000, while the sum is 51.

The spelling of 18597227055 in words is "eighteen billion, five hundred ninety-seven million, two hundred twenty-seven thousand, fifty-five".