264534172226255 has 8 divisors (see below), whose sum is σ = 319758094312272. Its totient is φ = 210082612687168.

The previous prime is 264534172226221. The next prime is 264534172226263. The reversal of 264534172226255 is 552622271435462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264534172226255 is a prime.

It is a super-2 number, since 2×264534172226255² (a number of 30 digits) contains 22 as substring.

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 264534172226255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193090635977 + ... + 193090637346.

It is an arithmetic number, because the mean of its divisors is an integer number (39969761789034).

Almost surely, 2^{264534172226255} is an apocalyptic number.

264534172226255 is a deficient number, since it is larger than the sum of its proper divisors (55223922086017).

264534172226255 is a wasteful number, since it uses less digits than its factorization.

264534172226255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386181273465.

The product of its digits is 48384000, while the sum is 56.

The spelling of 264534172226255 in words is "two hundred sixty-four trillion, five hundred thirty-four billion, one hundred seventy-two million, two hundred twenty-six thousand, two hundred fifty-five".