22385648018 has 32 divisors (see below), whose sum is σ = 35658762240. Its totient is φ = 10521161280.

The previous prime is 22385648003. The next prime is 22385648027. The reversal of 22385648018 is 81084658322.

It is a super-2 number, since 2×22385648018² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1398263 + ... + 1414181.

It is an arithmetic number, because the mean of its divisors is an integer number (1114336320).

Almost surely, 2^22385648018 is an apocalyptic number.

22385648018 is a deficient number, since it is larger than the sum of its proper divisors (13273114222).

22385648018 is a wasteful number, since it uses less digits than its factorization.

22385648018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16602.

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 22385648018 in words is "twenty-two billion, three hundred eighty-five million, six hundred forty-eight thousand, eighteen".