216037639913 has 2 divisors, whose sum is σ = 216037639914. Its totient is φ = 216037639912.

The previous prime is 216037639903. The next prime is 216037639969. The reversal of 216037639913 is 319936730612.

216037639913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140867354329 + 75170285584 = 375323^2 + 274172^2 .

It is a cyclic number.

It is not a de Polignac number, because 216037639913 - 2²⁴ = 216020862697 is a prime.

It is not a weakly prime, because it can be changed into another prime (216037639903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108018819956 + 108018819957.

It is an arithmetic number, because the mean of its divisors is an integer number (108018819957).

Almost surely, 2^216037639913 is an apocalyptic number.

It is an amenable number.

216037639913 is a deficient number, since it is larger than the sum of its proper divisors (1).

216037639913 is an equidigital number, since it uses as much as digits as its factorization.

216037639913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1102248, while the sum is 50.

The spelling of 216037639913 in words is "two hundred sixteen billion, thirty-seven million, six hundred thirty-nine thousand, nine hundred thirteen".