22205515615161 has 16 divisors (see below), whose sum is σ = 29769953063424. Its totient is φ = 14722510794624.

The previous prime is 22205515615103. The next prime is 22205515615223. The reversal of 22205515615161 is 16151651550222.

It is a happy number.

It is not a de Polignac number, because 22205515615161 - 2¹⁰ = 22205515614137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22205515617161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15978996 + ... + 17312981.

It is an arithmetic number, because the mean of its divisors is an integer number (1860622066464).

Almost surely, 2^{22205515615161} is an apocalyptic number.

It is an amenable number.

22205515615161 is a deficient number, since it is larger than the sum of its proper divisors (7564437448263).

22205515615161 is a wasteful number, since it uses less digits than its factorization.

22205515615161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33293200.

The product of its (nonzero) digits is 180000, while the sum is 42.

The spelling of 22205515615161 in words is "twenty-two trillion, two hundred five billion, five hundred fifteen million, six hundred fifteen thousand, one hundred sixty-one".