18220475595 has 64 divisors (see below), whose sum is σ = 33502178304. Its totient is φ = 8283340800.

The previous prime is 18220475573. The next prime is 18220475653. The reversal of 18220475595 is 59557402281.

It is not a de Polignac number, because 18220475595 - 2¹⁴ = 18220459211 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27073179 + ... + 27073851.

It is an arithmetic number, because the mean of its divisors is an integer number (523471536).

Almost surely, 2^18220475595 is an apocalyptic number.

18220475595 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18220475595 is a deficient number, since it is larger than the sum of its proper divisors (15281702709).

18220475595 is a wasteful number, since it uses less digits than its factorization.

18220475595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732.

The product of its (nonzero) digits is 1008000, while the sum is 48.

The spelling of 18220475595 in words is "eighteen billion, two hundred twenty million, four hundred seventy-five thousand, five hundred ninety-five".