264403564226261 has 8 divisors (see below), whose sum is σ = 264793811178624. Its totient is φ = 264013390230480.

The previous prime is 264403564226201. The next prime is 264403564226287. The reversal of 264403564226261 is 162622465304462.

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 264403564226261 - 2³⁰ = 264402490484437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264403564226201) 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, 10983425 + ... + 25484166.

It is an arithmetic number, because the mean of its divisors is an integer number (33099226397328).

Almost surely, 2^{264403564226261} is an apocalyptic number.

It is an amenable number.

264403564226261 is a deficient number, since it is larger than the sum of its proper divisors (390246952363).

264403564226261 is an equidigital number, since it uses as much as digits as its factorization.

264403564226261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36478291.

The product of its (nonzero) digits is 19906560, while the sum is 53.

The spelling of 264403564226261 in words is "two hundred sixty-four trillion, four hundred three billion, five hundred sixty-four million, two hundred twenty-six thousand, two hundred sixty-one".