264660241247 has 4 divisors (see below), whose sum is σ = 273197668416. Its totient is φ = 256122814080.

The previous prime is 264660241243. The next prime is 264660241249. The reversal of 264660241247 is 742142066462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 264660241247 - 2² = 264660241243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 264660241198 and 264660241207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264660241243) 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, 4268713538 + ... + 4268713599.

It is an arithmetic number, because the mean of its divisors is an integer number (68299417104).

Almost surely, 2^264660241247 is an apocalyptic number.

264660241247 is a deficient number, since it is larger than the sum of its proper divisors (8537427169).

264660241247 is an equidigital number, since it uses as much as digits as its factorization.

264660241247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8537427168.

The product of its (nonzero) digits is 774144, while the sum is 44.

The spelling of 264660241247 in words is "two hundred sixty-four billion, six hundred sixty million, two hundred forty-one thousand, two hundred forty-seven".