22161464938 has 8 divisors (see below), whose sum is σ = 33248430432. Its totient is φ = 11078654796.

The previous prime is 22161464893. The next prime is 22161464953. The reversal of 22161464938 is 83946416122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22161464938² (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, 1025470 + ... + 1046857.

It is an arithmetic number, because the mean of its divisors is an integer number (4156053804).

Almost surely, 2^22161464938 is an apocalyptic number.

22161464938 is a deficient number, since it is larger than the sum of its proper divisors (11086965494).

22161464938 is a wasteful number, since it uses less digits than its factorization.

22161464938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077676.

The product of its digits is 497664, while the sum is 46.

The spelling of 22161464938 in words is "twenty-two billion, one hundred sixty-one million, four hundred sixty-four thousand, nine hundred thirty-eight".