264440622466431 has 6 divisors (see below), whose sum is σ = 381969788007080. Its totient is φ = 176293748310948.

The previous prime is 264440622466403. The next prime is 264440622466453. The reversal of 264440622466431 is 134664226044462.

264440622466431 is a `hidden beast` number, since 2 + 6 + 4 + 4 + 4 + 0 + 622 + 4 + 6 + 6 + 4 + 3 + 1 = 666.

It is not a de Polignac number, because 264440622466431 - 2¹³ = 264440622458239 is a prime.

It is a super-2 number, since 2×264440622466431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264440622466331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14691145692571 + ... + 14691145692588.

Almost surely, 2^{264440622466431} is an apocalyptic number.

264440622466431 is a deficient number, since it is larger than the sum of its proper divisors (117529165540649).

264440622466431 is a wasteful number, since it uses less digits than its factorization.

264440622466431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29382291385165 (or 29382291385162 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 54.

The spelling of 264440622466431 in words is "two hundred sixty-four trillion, four hundred forty billion, six hundred twenty-two million, four hundred sixty-six thousand, four hundred thirty-one".