264995443401 has 16 divisors (see below), whose sum is σ = 380543985024. Its totient is φ = 163057958784.

The previous prime is 264995443399. The next prime is 264995443423. The reversal of 264995443401 is 104344599462.

It is a happy number.

It is not a de Polignac number, because 264995443401 - 2¹ = 264995443399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (264995443451) 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, 68085 + ... + 731181.

It is an arithmetic number, because the mean of its divisors is an integer number (23783999064).

Almost surely, 2^264995443401 is an apocalyptic number.

It is an amenable number.

264995443401 is a deficient number, since it is larger than the sum of its proper divisors (115548541623).

264995443401 is a wasteful number, since it uses less digits than its factorization.

264995443401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673360.

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 264995443401 in words is "two hundred sixty-four billion, nine hundred ninety-five million, four hundred forty-three thousand, four hundred one".