16550072573 has 2 divisors, whose sum is σ = 16550072574. Its totient is φ = 16550072572.

The previous prime is 16550072551. The next prime is 16550072597. The reversal of 16550072573 is 37527005561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16195616644 + 354455929 = 127262^2 + 18827^2 .

It is a cyclic number.

It is not a de Polignac number, because 16550072573 - 2⁸ = 16550072317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16550072573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16550072173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8275036286 + 8275036287.

It is an arithmetic number, because the mean of its divisors is an integer number (8275036287).

Almost surely, 2^16550072573 is an apocalyptic number.

It is an amenable number.

16550072573 is a deficient number, since it is larger than the sum of its proper divisors (1).

16550072573 is an equidigital number, since it uses as much as digits as its factorization.

16550072573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 220500, while the sum is 41.

The spelling of 16550072573 in words is "sixteen billion, five hundred fifty million, seventy-two thousand, five hundred seventy-three".