264651421465 has 8 divisors (see below), whose sum is σ = 328532799240. Its totient is φ = 204420408192.

The previous prime is 264651421421. The next prime is 264651421471. The reversal of 264651421465 is 564124156462.

It can be written as a sum of positive squares in 4 ways, for example, as 40660302736 + 223991118729 = 201644^2 + 473277^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 264651421465 - 2⁷ = 264651421337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 912590964 + ... + 912591253.

It is an arithmetic number, because the mean of its divisors is an integer number (41066599905).

Almost surely, 2^264651421465 is an apocalyptic number.

It is an amenable number.

264651421465 is a deficient number, since it is larger than the sum of its proper divisors (63881377775).

264651421465 is a wasteful number, since it uses less digits than its factorization.

264651421465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825182251.

The product of its digits is 1382400, while the sum is 46.

The spelling of 264651421465 in words is "two hundred sixty-four billion, six hundred fifty-one million, four hundred twenty-one thousand, four hundred sixty-five".