22161364144 has 20 divisors (see below), whose sum is σ = 42955082296. Its totient is φ = 11076181632.

The previous prime is 22161364129. The next prime is 22161364187. The reversal of 22161364144 is 44146316122.

It is a super-2 number, since 2×22161364144² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240474 + ... + 319609.

Almost surely, 2^22161364144 is an apocalyptic number.

It is an amenable number.

22161364144 is a deficient number, since it is larger than the sum of its proper divisors (20793718152).

22161364144 is a wasteful number, since it uses less digits than its factorization.

22161364144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562564 (or 562558 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The spelling of 22161364144 in words is "twenty-two billion, one hundred sixty-one million, three hundred sixty-four thousand, one hundred forty-four".