188014502161 has 4 divisors (see below), whose sum is σ = 191561945652. Its totient is φ = 184467058672.

The previous prime is 188014502099. The next prime is 188014502197. The reversal of 188014502161 is 161205410881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161205410881 = 3739 ⋅43114579.

It can be written as a sum of positive squares in 2 ways, for example, as 82415500561 + 105599001600 = 287081^2 + 324960^2 .

It is a cyclic number.

It is not a de Polignac number, because 188014502161 - 2¹⁷ = 188014371089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 188014502161.

It is not an unprimeable number, because it can be changed into a prime (188014502861) 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, 1773721666 + ... + 1773721771.

It is an arithmetic number, because the mean of its divisors is an integer number (47890486413).

Almost surely, 2^188014502161 is an apocalyptic number.

It is an amenable number.

188014502161 is a deficient number, since it is larger than the sum of its proper divisors (3547443491).

188014502161 is an equidigital number, since it uses as much as digits as its factorization.

188014502161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3547443490.

The product of its (nonzero) digits is 15360, while the sum is 37.

The spelling of 188014502161 in words is "one hundred eighty-eight billion, fourteen million, five hundred two thousand, one hundred sixty-one".