264497668 has 6 divisors (see below), whose sum is σ = 462870926. Its totient is φ = 132248832.

The previous prime is 264497663. The next prime is 264497669. The reversal of 264497668 is 866794462.

It is a happy number.

264497668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 258823744 + 5673924 = 16088^2 + 2382^2 .

It is not an unprimeable number, because it can be changed into a prime (264497663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33062205 + ... + 33062212.

Almost surely, 2^264497668 is an apocalyptic number.

It is an amenable number.

264497668 is a deficient number, since it is larger than the sum of its proper divisors (198373258).

264497668 is a wasteful number, since it uses less digits than its factorization.

264497668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66124421 (or 66124419 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 52.

The square root of 264497668 is about 16263.3842726537. The cubic root of 264497668 is about 641.9097157939.

The spelling of 264497668 in words is "two hundred sixty-four million, four hundred ninety-seven thousand, six hundred sixty-eight".