264520667 has 2 divisors, whose sum is σ = 264520668. Its totient is φ = 264520666.

The previous prime is 264520657. The next prime is 264520771. The reversal of 264520667 is 766025462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264520667 - 2⁸ = 264520411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 264520667.

It is not a weakly prime, because it can be changed into another prime (264520657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132260333 + 132260334.

It is an arithmetic number, because the mean of its divisors is an integer number (132260334).

Almost surely, 2^264520667 is an apocalyptic number.

264520667 is a deficient number, since it is larger than the sum of its proper divisors (1).

264520667 is an equidigital number, since it uses as much as digits as its factorization.

264520667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 264520667 is about 16264.0913364381. The cubic root of 264520667 is about 641.9283206885.

The spelling of 264520667 in words is "two hundred sixty-four million, five hundred twenty thousand, six hundred sixty-seven".