164563968 has 44 divisors (see below), whose sum is σ = 438631160. Its totient is φ = 54853632.

The previous prime is 164563963. The next prime is 164563969. The reversal of 164563968 is 869365461.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (164563963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23713 + ... + 29856.

It is an arithmetic number, because the mean of its divisors is an integer number (9968890).

Almost surely, 2^164563968 is an apocalyptic number.

It is an amenable number.

164563968 is an abundant number, since it is smaller than the sum of its proper divisors (274067192).

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

164563968 is an equidigital number, since it uses as much as digits as its factorization.

164563968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53592 (or 53574 counting only the distinct ones).

The product of its digits is 933120, while the sum is 48.

The square root of 164563968 is about 12828.2488282696. The cubic root of 164563968 is about 547.9970873804.

The spelling of 164563968 in words is "one hundred sixty-four million, five hundred sixty-three thousand, nine hundred sixty-eight".