16114661813 has 4 divisors (see below), whose sum is σ = 16145592588. Its totient is φ = 16083731040.

The previous prime is 16114661809. The next prime is 16114661891. The reversal of 16114661813 is 31816641161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6071214724 + 10043447089 = 77918^2 + 100217^2 .

It is a cyclic number.

It is not a de Polignac number, because 16114661813 - 2² = 16114661809 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16114661113) 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, 15464606 + ... + 15465647.

It is an arithmetic number, because the mean of its divisors is an integer number (4036398147).

Almost surely, 2^16114661813 is an apocalyptic number.

It is an amenable number.

16114661813 is a deficient number, since it is larger than the sum of its proper divisors (30930775).

16114661813 is an equidigital number, since it uses as much as digits as its factorization.

16114661813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30930774.

The product of its digits is 20736, while the sum is 38.

The spelling of 16114661813 in words is "sixteen billion, one hundred fourteen million, six hundred sixty-one thousand, eight hundred thirteen".