16069637021 has 2 divisors, whose sum is σ = 16069637022. Its totient is φ = 16069637020.

The previous prime is 16069637009. The next prime is 16069637081. The reversal of 16069637021 is 12073696061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10698799225 + 5370837796 = 103435^2 + 73286^2 .

It is a cyclic number.

It is not a de Polignac number, because 16069637021 - 2¹⁰ = 16069635997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16069637021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16069637081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8034818510 + 8034818511.

It is an arithmetic number, because the mean of its divisors is an integer number (8034818511).

Almost surely, 2^16069637021 is an apocalyptic number.

It is an amenable number.

16069637021 is a deficient number, since it is larger than the sum of its proper divisors (1).

16069637021 is an equidigital number, since it uses as much as digits as its factorization.

16069637021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 41.

The spelling of 16069637021 in words is "sixteen billion, sixty-nine million, six hundred thirty-seven thousand, twenty-one".