265464666401 has 16 divisors (see below), whose sum is σ = 296701526016. Its totient is φ = 235413360000.

The previous prime is 265464666361. The next prime is 265464666413. The reversal of 265464666401 is 104666464562.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265464666401 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 265464666401.

It is not an unprimeable number, because it can be changed into a prime (265464666451) 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, 3658211 + ... + 3730071.

It is an arithmetic number, because the mean of its divisors is an integer number (18543845376).

Almost surely, 2^265464666401 is an apocalyptic number.

It is an amenable number.

265464666401 is a deficient number, since it is larger than the sum of its proper divisors (31236859615).

265464666401 is a wasteful number, since it uses less digits than its factorization.

265464666401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80104.

The product of its (nonzero) digits is 4976640, while the sum is 50.

The spelling of 265464666401 in words is "two hundred sixty-five billion, four hundred sixty-four million, six hundred sixty-six thousand, four hundred one".