264645164 has 48 divisors (see below), whose sum is σ = 545755392. Its totient is φ = 109916352.

The previous prime is 264645131. The next prime is 264645179. The reversal of 264645164 is 461546462.

264645164 is digitally balanced in base 2, 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 in 15 ways as a sum of consecutive naturals, for example, 483539 + ... + 484085.

It is an arithmetic number, because the mean of its divisors is an integer number (11369904).

Almost surely, 2^264645164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 264645164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272877696).

264645164 is an abundant number, since it is smaller than the sum of its proper divisors (281110228).

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

264645164 is a wasteful number, since it uses less digits than its factorization.

264645164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062 (or 1060 counting only the distinct ones).

The product of its digits is 138240, while the sum is 38.

The square root of 264645164 is about 16267.9182442008. The cubic root of 264645164 is about 642.0290130294.

The spelling of 264645164 in words is "two hundred sixty-four million, six hundred forty-five thousand, one hundred sixty-four".