13396666845 has 32 divisors (see below), whose sum is σ = 21624261120. Its totient is φ = 7081966080.

The previous prime is 13396666837. The next prime is 13396666861. The reversal of 13396666845 is 54866669331.

It is not a de Polignac number, because 13396666845 - 2³ = 13396666837 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 792441 + ... + 809169.

It is an arithmetic number, because the mean of its divisors is an integer number (675758160).

Almost surely, 2^13396666845 is an apocalyptic number.

13396666845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13396666845 is a deficient number, since it is larger than the sum of its proper divisors (8227594275).

13396666845 is a wasteful number, since it uses less digits than its factorization.

13396666845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17205.

The product of its digits is 16796160, while the sum is 57.

The spelling of 13396666845 in words is "thirteen billion, three hundred ninety-six million, six hundred sixty-six thousand, eight hundred forty-five".