264334240641563 has 8 divisors (see below), whose sum is σ = 269321965933968. Its totient is φ = 259346525971104.

The previous prime is 264334240641503. The next prime is 264334240641683. The reversal of 264334240641563 is 365146042433462.

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 264334240641563 - 2⁸ = 264334240641307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (264334240641503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62549645 + ... + 66641777.

It is an arithmetic number, because the mean of its divisors is an integer number (33665245741746).

Almost surely, 2^{264334240641563} is an apocalyptic number.

264334240641563 is a deficient number, since it is larger than the sum of its proper divisors (4987725292405).

264334240641563 is a wasteful number, since it uses less digits than its factorization.

264334240641563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5310973.

The product of its (nonzero) digits is 29859840, while the sum is 53.

The spelling of 264334240641563 in words is "two hundred sixty-four trillion, three hundred thirty-four billion, two hundred forty million, six hundred forty-one thousand, five hundred sixty-three".