163605072 has 40 divisors (see below), whose sum is σ = 441025344. Its totient is φ = 52163584.

The previous prime is 163605041. The next prime is 163605077. The reversal of 163605072 is 270506361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163605077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72993 + ... + 75200.

Almost surely, 2^163605072 is an apocalyptic number.

163605072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163605072 is an abundant number, since it is smaller than the sum of its proper divisors (277420272).

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

163605072 is a wasteful number, since it uses less digits than its factorization.

163605072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148227 (or 148221 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 163605072 is about 12790.8198329896. The cubic root of 163605072 is about 546.9306405733.

The spelling of 163605072 in words is "one hundred sixty-three million, six hundred five thousand, seventy-two".