264340421340534 has 96 divisors (see below), whose sum is σ = 714101438119680. Its totient is φ = 68656099579200.

The previous prime is 264340421340377. The next prime is 264340421340557. The reversal of 264340421340534 is 435043124043462.

264340421340534 is a `hidden beast` number, since 2 + 6 + 4 + 3 + 40 + 42 + 1 + 34 + 0 + 534 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 264340421340534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20221297 + ... + 30619955.

It is an arithmetic number, because the mean of its divisors is an integer number (7438556647080).

Almost surely, 2^{264340421340534} is an apocalyptic number.

264340421340534 is an abundant number, since it is smaller than the sum of its proper divisors (449761016779146).

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

264340421340534 is a wasteful number, since it uses less digits than its factorization.

264340421340534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10417026 (or 10417023 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 45.

Adding to 264340421340534 its reverse (435043124043462), we get a palindrome (699383545383996).

The spelling of 264340421340534 in words is "two hundred sixty-four trillion, three hundred forty billion, four hundred twenty-one million, three hundred forty thousand, five hundred thirty-four".