264835664 has 10 divisors (see below), whose sum is σ = 513119130. Its totient is φ = 132417824.

The previous prime is 264835631. The next prime is 264835723. The reversal of 264835664 is 466538462.

It can be written as a sum of positive squares in only one way, i.e., 154753600 + 110082064 = 12440^2 + 10492^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8276099 + ... + 8276130.

It is an arithmetic number, because the mean of its divisors is an integer number (51311913).

Almost surely, 2^264835664 is an apocalyptic number.

It is an amenable number.

264835664 is a deficient number, since it is larger than the sum of its proper divisors (248283466).

264835664 is a wasteful number, since it uses less digits than its factorization.

264835664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16552237 (or 16552231 counting only the distinct ones).

The product of its digits is 829440, while the sum is 44.

The square root of 264835664 is about 16273.7722732008. The cubic root of 264835664 is about 642.1830270434.

The spelling of 264835664 in words is "two hundred sixty-four million, eight hundred thirty-five thousand, six hundred sixty-four".