22161345133 has 8 divisors (see below), whose sum is σ = 22704627456. Its totient is φ = 21618194400.

The previous prime is 22161345127. The next prime is 22161345179. The reversal of 22161345133 is 33154316122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22161345133 is a prime.

It is a super-2 number, since 2×22161345133² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22161345095 and 22161345104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22161345113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366810 + ... + 422932.

It is an arithmetic number, because the mean of its divisors is an integer number (2838078432).

Almost surely, 2^22161345133 is an apocalyptic number.

It is an amenable number.

22161345133 is a deficient number, since it is larger than the sum of its proper divisors (543282323).

22161345133 is an equidigital number, since it uses as much as digits as its factorization.

22161345133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65795.

The product of its digits is 12960, while the sum is 31.

The spelling of 22161345133 in words is "twenty-two billion, one hundred sixty-one million, three hundred forty-five thousand, one hundred thirty-three".