16000066086061 has 2 divisors, whose sum is σ = 16000066086062. Its totient is φ = 16000066086060.

The previous prime is 16000066085999. The next prime is 16000066086089. The reversal of 16000066086061 is 16068066000061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13776761430436 + 2223304655625 = 3711706^2 + 1491075^2 .

It is an emirp because it is prime and its reverse (16068066000061) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 19098099000091 and 19000099089091.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16000066086061 is a prime.

It is a super-2 number, since 2×16000066086061² (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 (16000066081061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8000033043030 + 8000033043031.

It is an arithmetic number, because the mean of its divisors is an integer number (8000033043031).

Almost surely, 2^{16000066086061} is an apocalyptic number.

It is an amenable number.

16000066086061 is a deficient number, since it is larger than the sum of its proper divisors (1).

16000066086061 is an equidigital number, since it uses as much as digits as its factorization.

16000066086061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 16000066086061 in words is "sixteen trillion, sixty-six million, eighty-six thousand, sixty-one".