13522156545 has 16 divisors (see below), whose sum is σ = 21678475392. Its totient is φ = 7197475200.

The previous prime is 13522156523. The next prime is 13522156547. The reversal of 13522156545 is 54565122531.

It is not a de Polignac number, because 13522156545 - 2²⁰ = 13521107969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13522156547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 888556 + ... + 903645.

It is an arithmetic number, because the mean of its divisors is an integer number (1354904712).

Almost surely, 2^13522156545 is an apocalyptic number.

13522156545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13522156545 is a deficient number, since it is larger than the sum of its proper divisors (8156318847).

13522156545 is a wasteful number, since it uses less digits than its factorization.

13522156545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792712.

The product of its digits is 180000, while the sum is 39.

The spelling of 13522156545 in words is "thirteen billion, five hundred twenty-two million, one hundred fifty-six thousand, five hundred forty-five".