16358423471081 has 2 divisors, whose sum is σ = 16358423471082. Its totient is φ = 16358423471080.

The previous prime is 16358423471069. The next prime is 16358423471119. The reversal of 16358423471081 is 18017432485361.

16358423471081 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., 12250035000025 + 4108388471056 = 3500005^2 + 2026916^2 .

It is a cyclic number.

It is not a de Polignac number, because 16358423471081 - 2¹⁴ = 16358423454697 is a prime.

It is a super-2 number, since 2×16358423471081² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16358423473081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8179211735540 + 8179211735541.

It is an arithmetic number, because the mean of its divisors is an integer number (8179211735541).

Almost surely, 2^{16358423471081} is an apocalyptic number.

It is an amenable number.

16358423471081 is a deficient number, since it is larger than the sum of its proper divisors (1).

16358423471081 is an equidigital number, since it uses as much as digits as its factorization.

16358423471081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 16358423471081 in words is "sixteen trillion, three hundred fifty-eight billion, four hundred twenty-three million, four hundred seventy-one thousand, eighty-one".