15661960422 has 16 divisors (see below), whose sum is σ = 31486223280. Its totient is φ = 5193603072.

The previous prime is 15661960417. The next prime is 15661960427. The reversal of 15661960422 is 22406916651.

15661960422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (15661960417) and next prime (15661960427).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15661960427) 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 7 ways as a sum of consecutive naturals, for example, 6761347 + ... + 6763662.

It is an arithmetic number, because the mean of its divisors is an integer number (1967888955).

Almost surely, 2^15661960422 is an apocalyptic number.

15661960422 is an abundant number, since it is smaller than the sum of its proper divisors (15824262858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15661960422 is a wasteful number, since it uses less digits than its factorization.

15661960422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13525207.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 15661960422 in words is "fifteen billion, six hundred sixty-one million, nine hundred sixty thousand, four hundred twenty-two".