264478163 has 8 divisors (see below), whose sum is σ = 282924432. Its totient is φ = 246352896.

The previous prime is 264478153. The next prime is 264478169. The reversal of 264478163 is 361874462.

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 264478163 - 2⁶ = 264478099 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 264478163.

It is not an unprimeable number, because it can be changed into a prime (264478169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78545 + ... + 81842.

It is an arithmetic number, because the mean of its divisors is an integer number (35365554).

Almost surely, 2^264478163 is an apocalyptic number.

264478163 is a deficient number, since it is larger than the sum of its proper divisors (18446269).

264478163 is a wasteful number, since it uses less digits than its factorization.

264478163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160501.

The product of its digits is 193536, while the sum is 41.

The square root of 264478163 is about 16262.7846016603. The cubic root of 264478163 is about 641.8939365032.

The spelling of 264478163 in words is "two hundred sixty-four million, four hundred seventy-eight thousand, one hundred sixty-three".