163930874248 has 16 divisors (see below), whose sum is σ = 307374687180. Its totient is φ = 81964291008.

The previous prime is 163930874221. The next prime is 163930874257. The reversal of 163930874248 is 842478039361.

It can be written as a sum of positive squares in 2 ways, for example, as 154038980484 + 9891893764 = 392478^2 + 99458^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025290 + ... + 1174342.

Almost surely, 2^163930874248 is an apocalyptic number.

It is an amenable number.

163930874248 is a deficient number, since it is larger than the sum of its proper divisors (143443812932).

163930874248 is a wasteful number, since it uses less digits than its factorization.

163930874248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286536 (or 286532 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 163930874248 in words is "one hundred sixty-three billion, nine hundred thirty million, eight hundred seventy-four thousand, two hundred forty-eight".