264432462521555 has 4 divisors (see below), whose sum is σ = 317318955025872. Its totient is φ = 211545970017240.

The previous prime is 264432462521519. The next prime is 264432462521567. The reversal of 264432462521555 is 555125264234462.

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

It is a de Polignac number, because none of the positive numbers 2^k-264432462521555 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 264432462521555.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26443246252151 + ... + 26443246252160.

It is an arithmetic number, because the mean of its divisors is an integer number (79329738756468).

Almost surely, 2^{264432462521555} is an apocalyptic number.

264432462521555 is a deficient number, since it is larger than the sum of its proper divisors (52886492504317).

264432462521555 is an equidigital number, since it uses as much as digits as its factorization.

264432462521555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52886492504316.

The product of its digits is 69120000, while the sum is 56.

The spelling of 264432462521555 in words is "two hundred sixty-four trillion, four hundred thirty-two billion, four hundred sixty-two million, five hundred twenty-one thousand, five hundred fifty-five".