264116336261 has 4 divisors (see below), whose sum is σ = 264382852224. Its totient is φ = 263849820300.

The previous prime is 264116336251. The next prime is 264116336279. The reversal of 264116336261 is 162633611462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 264116336261 - 2¹⁰ = 264116335237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264116336221) 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, 133256495 + ... + 133258476.

It is an arithmetic number, because the mean of its divisors is an integer number (66095713056).

Almost surely, 2^264116336261 is an apocalyptic number.

It is an amenable number.

264116336261 is a deficient number, since it is larger than the sum of its proper divisors (266515963).

264116336261 is an equidigital number, since it uses as much as digits as its factorization.

264116336261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266515962.

The product of its digits is 186624, while the sum is 41.

The spelling of 264116336261 in words is "two hundred sixty-four billion, one hundred sixteen million, three hundred thirty-six thousand, two hundred sixty-one".