16606777867 has 2 divisors, whose sum is σ = 16606777868. Its totient is φ = 16606777866.

The previous prime is 16606777829. The next prime is 16606777897. The reversal of 16606777867 is 76877760661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16606777867 - 2¹¹ = 16606775819 is a prime.

It is a super-2 number, since 2×16606777867² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16606777807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8303388933 + 8303388934.

It is an arithmetic number, because the mean of its divisors is an integer number (8303388934).

Almost surely, 2^16606777867 is an apocalyptic number.

16606777867 is a deficient number, since it is larger than the sum of its proper divisors (1).

16606777867 is an equidigital number, since it uses as much as digits as its factorization.

16606777867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24893568, while the sum is 61.

The spelling of 16606777867 in words is "sixteen billion, six hundred six million, seven hundred seventy-seven thousand, eight hundred sixty-seven".