15222936961 has 4 divisors (see below), whose sum is σ = 15223292500. Its totient is φ = 15222581424.

The previous prime is 15222936947. The next prime is 15222936991. The reversal of 15222936961 is 16963922251.

15222936961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16963922251 = 23 ⋅737561837.

It can be written as a sum of positive squares in 2 ways, for example, as 9570904561 + 5652032400 = 97831^2 + 75180^2 .

It is a cyclic number.

It is not a de Polignac number, because 15222936961 - 2¹¹ = 15222934913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15222936931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103086 + ... + 202663.

It is an arithmetic number, because the mean of its divisors is an integer number (3805823125).

Almost surely, 2^15222936961 is an apocalyptic number.

It is an amenable number.

15222936961 is a deficient number, since it is larger than the sum of its proper divisors (355539).

15222936961 is an equidigital number, since it uses as much as digits as its factorization.

15222936961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355538.

The product of its digits is 349920, while the sum is 46.

The spelling of 15222936961 in words is "fifteen billion, two hundred twenty-two million, nine hundred thirty-six thousand, nine hundred sixty-one".