13533315545 has 16 divisors (see below), whose sum is σ = 17660012688. Its totient is φ = 9914388480.

The previous prime is 13533315533. The next prime is 13533315553. The reversal of 13533315545 is 54551333531.

It can be written as a sum of positive squares in 8 ways, for example, as 1418350921 + 12114964624 = 37661^2 + 110068^2 .

It is not a de Polignac number, because 13533315545 - 2¹⁶ = 13533250009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13533315499 and 13533315508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2148416 + ... + 2154705.

It is an arithmetic number, because the mean of its divisors is an integer number (1103750793).

Almost surely, 2^13533315545 is an apocalyptic number.

It is an amenable number.

13533315545 is a deficient number, since it is larger than the sum of its proper divisors (4126697143).

13533315545 is a wasteful number, since it uses less digits than its factorization.

13533315545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4303180.

The product of its digits is 202500, while the sum is 38.

The spelling of 13533315545 in words is "thirteen billion, five hundred thirty-three million, three hundred fifteen thousand, five hundred forty-five".