2645135636065 has 32 divisors (see below), whose sum is σ = 3450629984256. Its totient is φ = 1934877054720.

The previous prime is 2645135636023. The next prime is 2645135636107. The reversal of 2645135636065 is 5606365315462.

It is an interprime number because it is at equal distance from previous prime (2645135636023) and next prime (2645135636107).

It is not a de Polignac number, because 2645135636065 - 2⁹ = 2645135635553 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135063264 + ... + 135082846.

It is an arithmetic number, because the mean of its divisors is an integer number (107832187008).

Almost surely, 2^{2645135636065} is an apocalyptic number.

It is an amenable number.

2645135636065 is a deficient number, since it is larger than the sum of its proper divisors (805494348191).

2645135636065 is a wasteful number, since it uses less digits than its factorization.

2645135636065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39129.

The product of its (nonzero) digits is 11664000, while the sum is 52.

The spelling of 2645135636065 in words is "two trillion, six hundred forty-five billion, one hundred thirty-five million, six hundred thirty-six thousand, sixty-five".