20160384845999 has 2 divisors, whose sum is σ = 20160384846000. Its totient is φ = 20160384845998.

The previous prime is 20160384845971. The next prime is 20160384846109. The reversal of 20160384845999 is 99954848306102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20160384845999 - 2¹² = 20160384841903 is a prime.

It is a super-2 number, since 2×20160384845999² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20160384845399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10080192422999 + 10080192423000.

It is an arithmetic number, because the mean of its divisors is an integer number (10080192423000).

Almost surely, 2^{20160384845999} is an apocalyptic number.

20160384845999 is a deficient number, since it is larger than the sum of its proper divisors (1).

20160384845999 is an equidigital number, since it uses as much as digits as its factorization.

20160384845999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134369280, while the sum is 68.

The spelling of 20160384845999 in words is "twenty trillion, one hundred sixty billion, three hundred eighty-four million, eight hundred forty-five thousand, nine hundred ninety-nine".