16116506551 has 2 divisors, whose sum is σ = 16116506552. Its totient is φ = 16116506550.

The previous prime is 16116506543. The next prime is 16116506561. The reversal of 16116506551 is 15560561161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16116506551 - 2³ = 16116506543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16116506551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16116506561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8058253275 + 8058253276.

It is an arithmetic number, because the mean of its divisors is an integer number (8058253276).

Almost surely, 2^16116506551 is an apocalyptic number.

16116506551 is a deficient number, since it is larger than the sum of its proper divisors (1).

16116506551 is an equidigital number, since it uses as much as digits as its factorization.

16116506551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 16116506551 in words is "sixteen billion, one hundred sixteen million, five hundred six thousand, five hundred fifty-one".