13330505745 has 40 divisors (see below), whose sum is σ = 24054528960. Its totient is φ = 7062487200.

The previous prime is 13330505737. The next prime is 13330505779. The reversal of 13330505745 is 54750503331.

13330505745 is a `hidden beast` number, since 1 + 3 + 3 + 30 + 50 + 574 + 5 = 666.

It is not a de Polignac number, because 13330505745 - 2³ = 13330505737 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 47835 + ... + 170144.

It is an arithmetic number, because the mean of its divisors is an integer number (601363224).

Almost surely, 2^13330505745 is an apocalyptic number.

13330505745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13330505745 is a deficient number, since it is larger than the sum of its proper divisors (10724023215).

13330505745 is a wasteful number, since it uses less digits than its factorization.

13330505745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218147 (or 218138 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 36.

The spelling of 13330505745 in words is "thirteen billion, three hundred thirty million, five hundred five thousand, seven hundred forty-five".