265640352325066 has 8 divisors (see below), whose sum is σ = 399464207401860. Its totient is φ = 132485616524448.

The previous prime is 265640352325039. The next prime is 265640352325109. The reversal of 265640352325066 is 660523253046562.

It can be written as a sum of positive squares in 2 ways, for example, as 220648119184441 + 44992233140625 = 14854229^2 + 6707625^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 265640352324998 and 265640352325016.

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, 167279818051 + ... + 167279819638.

Almost surely, 2^{265640352325066} is an apocalyptic number.

265640352325066 is a deficient number, since it is larger than the sum of its proper divisors (133823855076794).

265640352325066 is a wasteful number, since it uses less digits than its factorization.

265640352325066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334559638088.

The product of its (nonzero) digits is 46656000, while the sum is 55.

The spelling of 265640352325066 in words is "two hundred sixty-five trillion, six hundred forty billion, three hundred fifty-two million, three hundred twenty-five thousand, sixty-six".