264340043664250 has 16 divisors (see below), whose sum is σ = 494844561739944. Its totient is φ = 105736017465600.

The previous prime is 264340043664119. The next prime is 264340043664287. The reversal of 264340043664250 is 52466340043462.

It can be written as a sum of positive squares in 4 ways, for example, as 13229463896289 + 251110579767961 = 3637233^2 + 15846469^2 .

It is a junction number, because it is equal to n+sod(n) for n = 264340043664194 and 264340043664203.

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, 528680087079 + ... + 528680087578.

Almost surely, 2^{264340043664250} is an apocalyptic number.

264340043664250 is a deficient number, since it is larger than the sum of its proper divisors (230504518075694).

264340043664250 is a wasteful number, since it uses less digits than its factorization.

264340043664250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057360174674 (or 1057360174664 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 49.

The spelling of 264340043664250 in words is "two hundred sixty-four trillion, three hundred forty billion, forty-three million, six hundred sixty-four thousand, two hundred fifty".