163216372 has 24 divisors (see below), whose sum is σ = 325144512. Its totient is φ = 70963200.

The previous prime is 163216357. The next prime is 163216421. The reversal of 163216372 is 273612361.

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, 79629 + ... + 81652.

It is an arithmetic number, because the mean of its divisors is an integer number (13547688).

Almost surely, 2^163216372 is an apocalyptic number.

It is an amenable number.

163216372 is a deficient number, since it is larger than the sum of its proper divisors (161928140).

163216372 is a wasteful number, since it uses less digits than its factorization.

163216372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161319 (or 161317 counting only the distinct ones).

The product of its digits is 9072, while the sum is 31.

The square root of 163216372 is about 12775.6163060731. The cubic root of 163216372 is about 546.4971566117.

The spelling of 163216372 in words is "one hundred sixty-three million, two hundred sixteen thousand, three hundred seventy-two".