163523564 has 6 divisors (see below), whose sum is σ = 286166244. Its totient is φ = 81761780.

The previous prime is 163523533. The next prime is 163523623. The reversal of 163523564 is 465325361.

163523564 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20440442 + ... + 20440449.

It is an arithmetic number, because the mean of its divisors is an integer number (47694374).

Almost surely, 2^163523564 is an apocalyptic number.

It is an amenable number.

163523564 is a deficient number, since it is larger than the sum of its proper divisors (122642680).

163523564 is a wasteful number, since it uses less digits than its factorization.

163523564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40880895 (or 40880893 counting only the distinct ones).

The product of its digits is 64800, while the sum is 35.

The square root of 163523564 is about 12787.6332446626. The cubic root of 163523564 is about 546.8397985897.

The spelling of 163523564 in words is "one hundred sixty-three million, five hundred twenty-three thousand, five hundred sixty-four".