16211161922 has 6 divisors (see below), whose sum is σ = 24317012979. Its totient is φ = 8105490930.

The previous prime is 16211161919. The next prime is 16211161927. The reversal of 16211161922 is 22916111261.

It can be written as a sum of positive squares in only one way, i.e., 8105580961 + 8105580961 = 90031^2 + 90031^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=90031.

It is a super-2 number, since 2×16211161922² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16211161927) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 135047 + ... + 225077.

Almost surely, 2^16211161922 is an apocalyptic number.

16211161922 is a deficient number, since it is larger than the sum of its proper divisors (8105851057).

16211161922 is an frugal number, since it uses more digits than its factorization.

16211161922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180064 (or 90033 counting only the distinct ones).

The product of its digits is 2592, while the sum is 32.

Multiplying 16211161922 by its sum of digits (32), we get a square (518757181504 = 720248²).

Multiplying 16211161922 by its product of digits (2592), we get a square (42019331701824 = 6482232²).

The spelling of 16211161922 in words is "sixteen billion, two hundred eleven million, one hundred sixty-one thousand, nine hundred twenty-two".