13533664136 has 8 divisors (see below), whose sum is σ = 25375620270. Its totient is φ = 6766832064.

The previous prime is 13533664097. The next prime is 13533664139. The reversal of 13533664136 is 63146633531.

It can be written as a sum of positive squares in only one way, i.e., 11597136100 + 1936528036 = 107690^2 + 44006^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 13533664093 and 13533664102.

It is not an unprimeable number, because it can be changed into a prime (13533664139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 845854001 + ... + 845854016.

Almost surely, 2^13533664136 is an apocalyptic number.

It is an amenable number.

13533664136 is a deficient number, since it is larger than the sum of its proper divisors (11841956134).

13533664136 is a wasteful number, since it uses less digits than its factorization.

13533664136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691708023 (or 1691708019 counting only the distinct ones).

The product of its digits is 349920, while the sum is 41.

The spelling of 13533664136 in words is "thirteen billion, five hundred thirty-three million, six hundred sixty-four thousand, one hundred thirty-six".