22544246004161 has 4 divisors (see below), whose sum is σ = 25764852576192. Its totient is φ = 19323639432132.

The previous prime is 22544246004157. The next prime is 22544246004179. The reversal of 22544246004161 is 16140064244522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22544246004161 - 2² = 22544246004157 is a prime.

It is a super-2 number, since 2×22544246004161² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22544246004361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1610303286005 + ... + 1610303286018.

It is an arithmetic number, because the mean of its divisors is an integer number (6441213144048).

Almost surely, 2^{22544246004161} is an apocalyptic number.

It is an amenable number.

22544246004161 is a deficient number, since it is larger than the sum of its proper divisors (3220606572031).

22544246004161 is an equidigital number, since it uses as much as digits as its factorization.

22544246004161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3220606572030.

The product of its (nonzero) digits is 368640, while the sum is 41.

The spelling of 22544246004161 in words is "twenty-two trillion, five hundred forty-four billion, two hundred forty-six million, four thousand, one hundred sixty-one".