163279417983 has 32 divisors (see below), whose sum is σ = 240442877952. Its totient is φ = 97735519200.

The previous prime is 163279417979. The next prime is 163279417997. The reversal of 163279417983 is 389714972361.

It is not a de Polignac number, because 163279417983 - 2² = 163279417979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163279417933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1098910 + ... + 1238612.

It is an arithmetic number, because the mean of its divisors is an integer number (7513839936).

Almost surely, 2^163279417983 is an apocalyptic number.

163279417983 is a deficient number, since it is larger than the sum of its proper divisors (77163459969).

163279417983 is a wasteful number, since it uses less digits than its factorization.

163279417983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140155.

The product of its digits is 13716864, while the sum is 60.

The spelling of 163279417983 in words is "one hundred sixty-three billion, two hundred seventy-nine million, four hundred seventeen thousand, nine hundred eighty-three".