163688713475 has 36 divisors (see below), whose sum is σ = 233254851984. Its totient is φ = 111622674240.

The previous prime is 163688713393. The next prime is 163688713483. The reversal of 163688713475 is 574317886361.

It is not a de Polignac number, because 163688713475 - 2¹⁶ = 163688647939 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 75119936 + ... + 75122114.

It is an arithmetic number, because the mean of its divisors is an integer number (6479301444).

Almost surely, 2^163688713475 is an apocalyptic number.

163688713475 is a deficient number, since it is larger than the sum of its proper divisors (69566138509).

163688713475 is an frugal number, since it uses more digits than its factorization.

163688713475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4572 (or 2388 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 59.

The spelling of 163688713475 in words is "one hundred sixty-three billion, six hundred eighty-eight million, seven hundred thirteen thousand, four hundred seventy-five".