16105561576607 has 2 divisors, whose sum is σ = 16105561576608. Its totient is φ = 16105561576606.

The previous prime is 16105561576579. The next prime is 16105561576627. The reversal of 16105561576607 is 70667516550161.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16105561576607 - 2¹⁶ = 16105561511071 is a prime.

It is a super-2 number, since 2×16105561576607² (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 (16105561576627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8052780788303 + 8052780788304.

It is an arithmetic number, because the mean of its divisors is an integer number (8052780788304).

Almost surely, 2^{16105561576607} is an apocalyptic number.

16105561576607 is a deficient number, since it is larger than the sum of its proper divisors (1).

16105561576607 is an equidigital number, since it uses as much as digits as its factorization.

16105561576607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7938000, while the sum is 56.

The spelling of 16105561576607 in words is "sixteen trillion, one hundred five billion, five hundred sixty-one million, five hundred seventy-six thousand, six hundred seven".