13533161655 has 32 divisors (see below), whose sum is σ = 23333817024. Its totient is φ = 6658154496.

The previous prime is 13533161651. The next prime is 13533161689. The reversal of 13533161655 is 55616133531.

It is not a de Polignac number, because 13533161655 - 2² = 13533161651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13533161651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289687 + ... + 333143.

It is an arithmetic number, because the mean of its divisors is an integer number (729181782).

Almost surely, 2^13533161655 is an apocalyptic number.

13533161655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13533161655 is a deficient number, since it is larger than the sum of its proper divisors (9800655369).

13533161655 is a wasteful number, since it uses less digits than its factorization.

13533161655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45075.

The product of its digits is 121500, while the sum is 39.

The spelling of 13533161655 in words is "thirteen billion, five hundred thirty-three million, one hundred sixty-one thousand, six hundred fifty-five".