264340236443064 has 64 divisors (see below), whose sum is σ = 661897825776000. Its totient is φ = 87973798819200.

The previous prime is 264340236443009. The next prime is 264340236443077. The reversal of 264340236443064 is 460344632043462.

It is a junction number, because it is equal to n+sod(n) for n = 264340236442998 and 264340236443016.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 238284027 + ... + 239390805.

It is an arithmetic number, because the mean of its divisors is an integer number (10342153527750).

Almost surely, 2^{264340236443064} is an apocalyptic number.

264340236443064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

264340236443064 is an abundant number, since it is smaller than the sum of its proper divisors (397557589332936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

264340236443064 is a wasteful number, since it uses less digits than its factorization.

264340236443064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122548 (or 1122544 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 51.

The spelling of 264340236443064 in words is "two hundred sixty-four trillion, three hundred forty billion, two hundred thirty-six million, four hundred forty-three thousand, sixty-four".