264052221511 has 32 divisors (see below), whose sum is σ = 295152657408. Its totient is φ = 234691966080.

The previous prime is 264052221481. The next prime is 264052221529. The reversal of 264052221511 is 115122250462.

It is not a de Polignac number, because 264052221511 - 2¹⁹ = 264051697223 is a prime.

It is a super-2 number, since 2×264052221511² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264052221571) 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 31 ways as a sum of consecutive naturals, for example, 12499620 + ... + 12520726.

It is an arithmetic number, because the mean of its divisors is an integer number (9223520544).

Almost surely, 2^264052221511 is an apocalyptic number.

264052221511 is a deficient number, since it is larger than the sum of its proper divisors (31100435897).

264052221511 is a wasteful number, since it uses less digits than its factorization.

264052221511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21511.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 264052221511 its reverse (115122250462), we get a palindrome (379174471973).

The spelling of 264052221511 in words is "two hundred sixty-four billion, fifty-two million, two hundred twenty-one thousand, five hundred eleven".