16845113953 has 4 divisors (see below), whose sum is σ = 16845385648. Its totient is φ = 16844842260.

The previous prime is 16845113941. The next prime is 16845113977. The reversal of 16845113953 is 35931154861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16845113953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16845113903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7750 + ... + 183712.

It is an arithmetic number, because the mean of its divisors is an integer number (4211346412).

Almost surely, 2^16845113953 is an apocalyptic number.

It is an amenable number.

16845113953 is a deficient number, since it is larger than the sum of its proper divisors (271695).

16845113953 is an equidigital number, since it uses as much as digits as its factorization.

16845113953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271694.

The product of its digits is 388800, while the sum is 46.

The spelling of 16845113953 in words is "sixteen billion, eight hundred forty-five million, one hundred thirteen thousand, nine hundred fifty-three".