265131642567 has 16 divisors (see below), whose sum is σ = 385836377472. Its totient is φ = 160606530720.

The previous prime is 265131642547. The next prime is 265131642641. The reversal of 265131642567 is 765246131562.

It is not a de Polignac number, because 265131642567 - 2¹¹ = 265131640519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265131642547) 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, 1914928 + ... + 2048709.

It is an arithmetic number, because the mean of its divisors is an integer number (24114773592).

Almost surely, 2^265131642567 is an apocalyptic number.

265131642567 is a deficient number, since it is larger than the sum of its proper divisors (120704734905).

265131642567 is a wasteful number, since it uses less digits than its factorization.

265131642567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3965678.

The product of its digits is 1814400, while the sum is 48.

The spelling of 265131642567 in words is "two hundred sixty-five billion, one hundred thirty-one million, six hundred forty-two thousand, five hundred sixty-seven".