16069637081 has 2 divisors, whose sum is σ = 16069637082. Its totient is φ = 16069637080.

The previous prime is 16069637021. The next prime is 16069637083. The reversal of 16069637081 is 18073696061.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14593848025 + 1475789056 = 120805^2 + 38416^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16069637081 is a prime.

It is a super-2 number, since 2×16069637081² (a number of 21 digits) contains 22 as substring.

Together with 16069637083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16069637083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8034818540 + 8034818541.

It is an arithmetic number, because the mean of its divisors is an integer number (8034818541).

Almost surely, 2^16069637081 is an apocalyptic number.

It is an amenable number.

16069637081 is a deficient number, since it is larger than the sum of its proper divisors (1).

16069637081 is an equidigital number, since it uses as much as digits as its factorization.

16069637081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 16069637081 in words is "sixteen billion, sixty-nine million, six hundred thirty-seven thousand, eighty-one".