2765805350665 has 16 divisors (see below), whose sum is σ = 3793670853120. Its totient is φ = 1896269054400.

The previous prime is 2765805350663. The next prime is 2765805350677. The reversal of 2765805350665 is 5660535085672.

It is not a de Polignac number, because 2765805350665 - 2¹ = 2765805350663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2765805350663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5661825 + ... + 6130894.

It is an arithmetic number, because the mean of its divisors is an integer number (237104428320).

Almost surely, 2^{2765805350665} is an apocalyptic number.

It is an amenable number.

2765805350665 is a deficient number, since it is larger than the sum of its proper divisors (1027865502455).

2765805350665 is a wasteful number, since it uses less digits than its factorization.

2765805350665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11799432.

The product of its (nonzero) digits is 45360000, while the sum is 58.

The spelling of 2765805350665 in words is "two trillion, seven hundred sixty-five billion, eight hundred five million, three hundred fifty thousand, six hundred sixty-five".