163992315388 has 24 divisors (see below), whose sum is σ = 314698411440. Its totient is φ = 74155729920.

The previous prime is 163992315373. The next prime is 163992315401. The reversal of 163992315388 is 883513299361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9647203 + ... + 9664186.

It is an arithmetic number, because the mean of its divisors is an integer number (13112433810).

Almost surely, 2^163992315388 is an apocalyptic number.

It is an amenable number.

163992315388 is a deficient number, since it is larger than the sum of its proper divisors (150706096052).

163992315388 is a wasteful number, since it uses less digits than its factorization.

163992315388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19311597 (or 19311595 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 58.

The spelling of 163992315388 in words is "one hundred sixty-three billion, nine hundred ninety-two million, three hundred fifteen thousand, three hundred eighty-eight".