264432654256663 has 4 divisors (see below), whose sum is σ = 265373695731168. Its totient is φ = 263491612782160.

The previous prime is 264432654256637. The next prime is 264432654256709. The reversal of 264432654256663 is 366652456234462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 264432654256663 - 2⁴⁵ = 229248282167831 is a prime.

It is a super-3 number, since 3×264432654256663³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 264432654256595 and 264432654256604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264432654256063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470520736831 + ... + 470520737392.

It is an arithmetic number, because the mean of its divisors is an integer number (66343423932792).

Almost surely, 2^{264432654256663} is an apocalyptic number.

264432654256663 is a deficient number, since it is larger than the sum of its proper divisors (941041474505).

264432654256663 is an equidigital number, since it uses as much as digits as its factorization.

264432654256663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941041474504.

The product of its digits is 895795200, while the sum is 64.

The spelling of 264432654256663 in words is "two hundred sixty-four trillion, four hundred thirty-two billion, six hundred fifty-four million, two hundred fifty-six thousand, six hundred sixty-three".