163545564 has 48 divisors (see below), whose sum is σ = 469672448. Its totient is φ = 43132608.

The previous prime is 163545539. The next prime is 163545583. The reversal of 163545564 is 465545361.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73792 + ... + 75975.

Almost surely, 2^163545564 is an apocalyptic number.

163545564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

163545564 is an abundant number, since it is smaller than the sum of its proper divisors (306126884).

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

163545564 is a wasteful number, since it uses less digits than its factorization.

163545564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149794 (or 149792 counting only the distinct ones).

The product of its digits is 216000, while the sum is 39.

The square root of 163545564 is about 12788.4934218226. The cubic root of 163545564 is about 546.8643209191.

The spelling of 163545564 in words is "one hundred sixty-three million, five hundred forty-five thousand, five hundred sixty-four".