264656656461 has 16 divisors (see below), whose sum is σ = 358632454400. Its totient is φ = 173575441728.

The previous prime is 264656656457. The next prime is 264656656559. The reversal of 264656656461 is 164656656462.

264656656461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 264656656461 - 2² = 264656656457 is a prime.

It is a super-3 number, since 3×264656656461³ (a number of 35 digits) contains 333 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 (264656656261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1950046 + ... + 2081343.

It is an arithmetic number, because the mean of its divisors is an integer number (22414528400).

Almost surely, 2^264656656461 is an apocalyptic number.

It is an amenable number.

264656656461 is a deficient number, since it is larger than the sum of its proper divisors (93975797939).

264656656461 is a wasteful number, since it uses less digits than its factorization.

264656656461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4031748.

The product of its digits is 37324800, while the sum is 57.

Subtracting from 264656656461 its reverse (164656656462), we obtain a palindrome (99999999999).

The spelling of 264656656461 in words is "two hundred sixty-four billion, six hundred fifty-six million, six hundred fifty-six thousand, four hundred sixty-one".