53644664537099 has 2 divisors, whose sum is σ = 53644664537100. Its totient is φ = 53644664537098.

The previous prime is 53644664537083. The next prime is 53644664537173. The reversal of 53644664537099 is 99073546644635.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53644664537099 - 2⁴ = 53644664537083 is a prime.

It is not a weakly prime, because it can be changed into another prime (53644664534099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26822332268549 + 26822332268550.

It is an arithmetic number, because the mean of its divisors is an integer number (26822332268550).

Almost surely, 2^{53644664537099} is an apocalyptic number.

53644664537099 is a deficient number, since it is larger than the sum of its proper divisors (1).

53644664537099 is an equidigital number, since it uses as much as digits as its factorization.

53644664537099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1763596800, while the sum is 71.

The spelling of 53644664537099 in words is "fifty-three trillion, six hundred forty-four billion, six hundred sixty-four million, five hundred thirty-seven thousand, ninety-nine".