15222604161 has 4 divisors (see below), whose sum is σ = 20296805552. Its totient is φ = 10148402772.

The previous prime is 15222604147. The next prime is 15222604169. The reversal of 15222604161 is 16140622251.

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 15222604161 - 2¹¹ = 15222602113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15222604169) 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, 2537100691 + ... + 2537100696.

It is an arithmetic number, because the mean of its divisors is an integer number (5074201388).

Almost surely, 2^15222604161 is an apocalyptic number.

It is an amenable number.

15222604161 is a deficient number, since it is larger than the sum of its proper divisors (5074201391).

15222604161 is an equidigital number, since it uses as much as digits as its factorization.

15222604161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5074201390.

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 15222604161 in words is "fifteen billion, two hundred twenty-two million, six hundred four thousand, one hundred sixty-one".