135265565266667 has 8 divisors (see below), whose sum is σ = 155328878775360. Its totient is φ = 116496659081160.

The previous prime is 135265565266661. The next prime is 135265565266681. The reversal of 135265565266667 is 766662565562531.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 135265565266667 - 2¹⁸ = 135265565004523 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 135265565266667.

It is not an unprimeable number, because it can be changed into a prime (135265565266661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323601830573 + ... + 323601830990.

It is an arithmetic number, because the mean of its divisors is an integer number (19416109846920).

Almost surely, 2^{135265565266667} is an apocalyptic number.

135265565266667 is a deficient number, since it is larger than the sum of its proper divisors (20063313508693).

135265565266667 is a wasteful number, since it uses less digits than its factorization.

135265565266667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647203661593.

The product of its digits is 2449440000, while the sum is 71.

The spelling of 135265565266667 in words is "one hundred thirty-five trillion, two hundred sixty-five billion, five hundred sixty-five million, two hundred sixty-six thousand, six hundred sixty-seven".