2660240260499 has 2 divisors, whose sum is σ = 2660240260500. Its totient is φ = 2660240260498.

The previous prime is 2660240260459. The next prime is 2660240260511. The reversal of 2660240260499 is 9940620420662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2660240260499 - 2³² = 2655945293203 is a prime.

It is not a weakly prime, because it can be changed into another prime (2660240260409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330120130249 + 1330120130250.

It is an arithmetic number, because the mean of its divisors is an integer number (1330120130250).

Almost surely, 2^{2660240260499} is an apocalyptic number.

2660240260499 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660240260499 is an equidigital number, since it uses as much as digits as its factorization.

2660240260499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2239488, while the sum is 50.

The spelling of 2660240260499 in words is "two trillion, six hundred sixty billion, two hundred forty million, two hundred sixty thousand, four hundred ninety-nine".