16550072551 has 2 divisors, whose sum is σ = 16550072552. Its totient is φ = 16550072550.

The previous prime is 16550072491. The next prime is 16550072573. The reversal of 16550072551 is 15527005561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16550072551 - 2¹³ = 16550064359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16550072551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16550072251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8275036275 + 8275036276.

It is an arithmetic number, because the mean of its divisors is an integer number (8275036276).

Almost surely, 2^16550072551 is an apocalyptic number.

16550072551 is a deficient number, since it is larger than the sum of its proper divisors (1).

16550072551 is an equidigital number, since it uses as much as digits as its factorization.

16550072551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52500, while the sum is 37.

The spelling of 16550072551 in words is "sixteen billion, five hundred fifty million, seventy-two thousand, five hundred fifty-one".