265420667 has 16 divisors (see below), whose sum is σ = 287539200. Its totient is φ = 244279200.

The previous prime is 265420651. The next prime is 265420679. The reversal of 265420667 is 766024562.

It is a cyclic number.

It is not a de Polignac number, because 265420667 - 2⁴ = 265420651 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 265420667.

It is not an unprimeable number, because it can be changed into a prime (265420607) 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, 135209 + ... + 137157.

It is an arithmetic number, because the mean of its divisors is an integer number (17971200).

Almost surely, 2^265420667 is an apocalyptic number.

265420667 is a deficient number, since it is larger than the sum of its proper divisors (22118533).

265420667 is a wasteful number, since it uses less digits than its factorization.

265420667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2194.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 265420667 is about 16291.7361567145. The cubic root of 265420667 is about 642.6555247359.

The spelling of 265420667 in words is "two hundred sixty-five million, four hundred twenty thousand, six hundred sixty-seven".