264041526661 has 4 divisors (see below), whose sum is σ = 288045301824. Its totient is φ = 240037751500.

The previous prime is 264041526647. The next prime is 264041526701. The reversal of 264041526661 is 166625140462.

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 264041526661 - 2⁵ = 264041526629 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 (264041526461) 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, 12001887565 + ... + 12001887586.

It is an arithmetic number, because the mean of its divisors is an integer number (72011325456).

Almost surely, 2^264041526661 is an apocalyptic number.

It is an amenable number.

264041526661 is a deficient number, since it is larger than the sum of its proper divisors (24003775163).

264041526661 is a wasteful number, since it uses less digits than its factorization.

264041526661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24003775162.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 264041526661 in words is "two hundred sixty-four billion, forty-one million, five hundred twenty-six thousand, six hundred sixty-one".