188009462161 has 8 divisors (see below), whose sum is σ = 188432558784. Its totient is φ = 187586795760.

The previous prime is 188009462141. The next prime is 188009462167. The reversal of 188009462161 is 161264900881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 188009462161 - 2⁷ = 188009462033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188009462167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 775566 + ... + 988696.

It is an arithmetic number, because the mean of its divisors is an integer number (23554069848).

Almost surely, 2^188009462161 is an apocalyptic number.

It is an amenable number.

188009462161 is a deficient number, since it is larger than the sum of its proper divisors (423096623).

188009462161 is a wasteful number, since it uses less digits than its factorization.

188009462161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215111.

The product of its (nonzero) digits is 165888, while the sum is 46.

The spelling of 188009462161 in words is "one hundred eighty-eight billion, nine million, four hundred sixty-two thousand, one hundred sixty-one".