13568160194 has 4 divisors (see below), whose sum is σ = 20352240294. Its totient is φ = 6784080096.

The previous prime is 13568160181. The next prime is 13568160209. The reversal of 13568160194 is 49106186531.

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

It can be written as a sum of positive squares in only one way, i.e., 10374441025 + 3193719169 = 101855^2 + 56513^2 .

It is a super-2 number, since 2×13568160194² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3392040047 + ... + 3392040050.

Almost surely, 2^13568160194 is an apocalyptic number.

13568160194 is a deficient number, since it is larger than the sum of its proper divisors (6784080100).

13568160194 is an equidigital number, since it uses as much as digits as its factorization.

13568160194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6784080099.

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 13568160194 in words is "thirteen billion, five hundred sixty-eight million, one hundred sixty thousand, one hundred ninety-four".