161468637275 has 12 divisors (see below), whose sum is σ = 218423029704. Its totient is φ = 117431736000.

The previous prime is 161468637229. The next prime is 161468637277. The reversal of 161468637275 is 572736864161.

It is a happy number.

It is not a de Polignac number, because 161468637275 - 2²⁸ = 161200201819 is a prime.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 161468637275.

It is not an unprimeable number, because it can be changed into a prime (161468637277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 293579066 + ... + 293579615.

It is an arithmetic number, because the mean of its divisors is an integer number (18201919142).

Almost surely, 2^161468637275 is an apocalyptic number.

161468637275 is a deficient number, since it is larger than the sum of its proper divisors (56954392429).

161468637275 is a wasteful number, since it uses less digits than its factorization.

161468637275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587158702 (or 587158697 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 56.

The spelling of 161468637275 in words is "one hundred sixty-one billion, four hundred sixty-eight million, six hundred thirty-seven thousand, two hundred seventy-five".