2265164756771 has 6 divisors (see below), whose sum is σ = 2634987574260. Its totient is φ = 1941569791476.

The previous prime is 2265164756719. The next prime is 2265164756797. The reversal of 2265164756771 is 1776574615622.

It is a happy number.

It is not a de Polignac number, because 2265164756771 - 2⁶ = 2265164756707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2265164756771.

It is not an unprimeable number, because it can be changed into a prime (2265164756971) 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, 23113926041 + ... + 23113926138.

It is an arithmetic number, because the mean of its divisors is an integer number (439164595710).

Almost surely, 2^{2265164756771} is an apocalyptic number.

2265164756771 is a deficient number, since it is larger than the sum of its proper divisors (369822817489).

2265164756771 is an equidigital number, since it uses as much as digits as its factorization.

2265164756771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46227852193 (or 46227852186 counting only the distinct ones).

The product of its digits is 29635200, while the sum is 59.

The spelling of 2265164756771 in words is "two trillion, two hundred sixty-five billion, one hundred sixty-four million, seven hundred fifty-six thousand, seven hundred seventy-one".