163474943268 has 72 divisors (see below), whose sum is σ = 477849856512. Its totient is φ = 43114268736.

The previous prime is 163474943263. The next prime is 163474943279. The reversal of 163474943268 is 862349474361.

It is not an unprimeable number, because it can be changed into a prime (163474943263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10685380 + ... + 10700667.

Almost surely, 2^163474943268 is an apocalyptic number.

It is an amenable number.

163474943268 is an abundant number, since it is smaller than the sum of its proper divisors (314374913244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163474943268 is a wasteful number, since it uses less digits than its factorization.

163474943268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21386081 (or 21386072 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 57.

The spelling of 163474943268 in words is "one hundred sixty-three billion, four hundred seventy-four million, nine hundred forty-three thousand, two hundred sixty-eight".