264255737217 has 16 divisors (see below), whose sum is σ = 368242879488. Its totient is φ = 168243823440.

The previous prime is 264255737191. The next prime is 264255737233. The reversal of 264255737217 is 712737552462.

It is not a de Polignac number, because 264255737217 - 2¹² = 264255733121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 264255737217.

It is not an unprimeable number, because it can be changed into a prime (264255737257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2991163 + ... + 3078240.

It is an arithmetic number, because the mean of its divisors is an integer number (23015179968).

Almost surely, 2^264255737217 is an apocalyptic number.

It is an amenable number.

264255737217 is a deficient number, since it is larger than the sum of its proper divisors (103987142271).

264255737217 is a wasteful number, since it uses less digits than its factorization.

264255737217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6070060.

The product of its digits is 4939200, while the sum is 51.

The spelling of 264255737217 in words is "two hundred sixty-four billion, two hundred fifty-five million, seven hundred thirty-seven thousand, two hundred seventeen".