265116851 has 2 divisors, whose sum is σ = 265116852. Its totient is φ = 265116850.

The previous prime is 265116847. The next prime is 265116881. The reversal of 265116851 is 158611562.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 265116851 - 2² = 265116847 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (265116821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132558425 + 132558426.

It is an arithmetic number, because the mean of its divisors is an integer number (132558426).

Almost surely, 2^265116851 is an apocalyptic number.

265116851 is a deficient number, since it is larger than the sum of its proper divisors (1).

265116851 is an equidigital number, since it uses as much as digits as its factorization.

265116851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 35.

The square root of 265116851 is about 16282.4092504764. The cubic root of 265116851 is about 642.4102240988.

The spelling of 265116851 in words is "two hundred sixty-five million, one hundred sixteen thousand, eight hundred fifty-one".