13533544505 has 12 divisors (see below), whose sum is σ = 17585600940. Its totient is φ = 9994001472.

The previous prime is 13533544489. The next prime is 13533544511. The reversal of 13533544505 is 50544533531.

It can be written as a sum of positive squares in 6 ways, for example, as 66406201 + 13467138304 = 8149^2 + 116048^2 .

It is not a de Polignac number, because 13533544505 - 2⁴ = 13533544489 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8007170 + ... + 8008859.

It is an arithmetic number, because the mean of its divisors is an integer number (1465466745).

Almost surely, 2^13533544505 is an apocalyptic number.

It is an amenable number.

13533544505 is a deficient number, since it is larger than the sum of its proper divisors (4052056435).

13533544505 is a wasteful number, since it uses less digits than its factorization.

13533544505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16016060 (or 16016047 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 38.

The spelling of 13533544505 in words is "thirteen billion, five hundred thirty-three million, five hundred forty-four thousand, five hundred five".