13522172406 has 16 divisors (see below), whose sum is σ = 27099430848. Its totient is φ = 4498209800.

The previous prime is 13522172399. The next prime is 13522172471. The reversal of 13522172406 is 60427122531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2292060 + ... + 2297951.

It is an arithmetic number, because the mean of its divisors is an integer number (1693714428).

Almost surely, 2^13522172406 is an apocalyptic number.

13522172406 is an abundant number, since it is smaller than the sum of its proper divisors (13577258442).

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

13522172406 is a wasteful number, since it uses less digits than its factorization.

13522172406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4590507.

The product of its (nonzero) digits is 20160, while the sum is 33.

Adding to 13522172406 its reverse (60427122531), we get a palindrome (73949294937).

The spelling of 13522172406 in words is "thirteen billion, five hundred twenty-two million, one hundred seventy-two thousand, four hundred six".