163667513375 has 16 divisors (see below), whose sum is σ = 205726553760. Its totient is φ = 129992025600.

The previous prime is 163667513323. The next prime is 163667513377. The reversal of 163667513375 is 573315766361.

It is not a de Polignac number, because 163667513375 - 2²⁰ = 163666464799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163667513377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4692482 + ... + 4727231.

It is an arithmetic number, because the mean of its divisors is an integer number (12857909610).

Almost surely, 2^163667513375 is an apocalyptic number.

163667513375 is a deficient number, since it is larger than the sum of its proper divisors (42059040385).

163667513375 is an equidigital number, since it uses as much as digits as its factorization.

163667513375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9419867 (or 9419857 counting only the distinct ones).

The product of its digits is 7144200, while the sum is 53.

The spelling of 163667513375 in words is "one hundred sixty-three billion, six hundred sixty-seven million, five hundred thirteen thousand, three hundred seventy-five".