2264640165691 has 2 divisors, whose sum is σ = 2264640165692. Its totient is φ = 2264640165690.

The previous prime is 2264640165643. The next prime is 2264640165721. The reversal of 2264640165691 is 1965610464622.

2264640165691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2264640165691 - 2⁷ = 2264640165563 is a prime.

It is not a weakly prime, because it can be changed into another prime (2264640165611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1132320082845 + 1132320082846.

It is an arithmetic number, because the mean of its divisors is an integer number (1132320082846).

Almost surely, 2^{2264640165691} is an apocalyptic number.

2264640165691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2264640165691 is an equidigital number, since it uses as much as digits as its factorization.

2264640165691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 2264640165691 in words is "two trillion, two hundred sixty-four billion, six hundred forty million, one hundred sixty-five thousand, six hundred ninety-one".