13355883665 has 16 divisors (see below), whose sum is σ = 16402756608. Its totient is φ = 10436053056.

The previous prime is 13355883661. The next prime is 13355883707. The reversal of 13355883665 is 56638855331.

It is a cyclic number.

It is not a de Polignac number, because 13355883665 - 2² = 13355883661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13355883661) 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, 53909 + ... + 172098.

It is an arithmetic number, because the mean of its divisors is an integer number (1025172288).

Almost surely, 2^13355883665 is an apocalyptic number.

It is an amenable number.

13355883665 is a deficient number, since it is larger than the sum of its proper divisors (3046872943).

13355883665 is a wasteful number, since it uses less digits than its factorization.

13355883665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226288.

The product of its digits is 7776000, while the sum is 53.

The spelling of 13355883665 in words is "thirteen billion, three hundred fifty-five million, eight hundred eighty-three thousand, six hundred sixty-five".