160866171922 has 4 divisors (see below), whose sum is σ = 241299257886. Its totient is φ = 80433085960.

The previous prime is 160866171919. The next prime is 160866171971. The reversal of 160866171922 is 229171668061.

It is a happy number.

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., 123447525201 + 37418646721 = 351351^2 + 193439^2 .

It is a super-2 number, since 2×160866171922² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40216542979 + ... + 40216542982.

Almost surely, 2^160866171922 is an apocalyptic number.

160866171922 is a deficient number, since it is larger than the sum of its proper divisors (80433085964).

160866171922 is an equidigital number, since it uses as much as digits as its factorization.

160866171922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80433085963.

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 160866171922 in words is "one hundred sixty billion, eight hundred sixty-six million, one hundred seventy-one thousand, nine hundred twenty-two".