2164636124009 has 2 divisors, whose sum is σ = 2164636124010. Its totient is φ = 2164636124008.

The previous prime is 2164636123987. The next prime is 2164636124029. The reversal of 2164636124009 is 9004216364612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1139763354409 + 1024872769600 = 1067597^2 + 1012360^2 .

It is a cyclic number.

It is not a de Polignac number, because 2164636124009 - 2²⁰ = 2164635075433 is a prime.

It is not a weakly prime, because it can be changed into another prime (2164636124029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082318062004 + 1082318062005.

It is an arithmetic number, because the mean of its divisors is an integer number (1082318062005).

Almost surely, 2^{2164636124009} is an apocalyptic number.

It is an amenable number.

2164636124009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164636124009 is an equidigital number, since it uses as much as digits as its factorization.

2164636124009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 44.

The spelling of 2164636124009 in words is "two trillion, one hundred sixty-four billion, six hundred thirty-six million, one hundred twenty-four thousand, nine".