16273371553 has 2 divisors, whose sum is σ = 16273371554. Its totient is φ = 16273371552.

The previous prime is 16273371529. The next prime is 16273371557. The reversal of 16273371553 is 35517337261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14334554529 + 1938817024 = 119727^2 + 44032^2 .

It is a cyclic number.

It is not a de Polignac number, because 16273371553 - 2¹³ = 16273363361 is a prime.

It is not a weakly prime, because it can be changed into another prime (16273371557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8136685776 + 8136685777.

It is an arithmetic number, because the mean of its divisors is an integer number (8136685777).

Almost surely, 2^16273371553 is an apocalyptic number.

It is an amenable number.

16273371553 is a deficient number, since it is larger than the sum of its proper divisors (1).

16273371553 is an equidigital number, since it uses as much as digits as its factorization.

16273371553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 396900, while the sum is 43.

The spelling of 16273371553 in words is "sixteen billion, two hundred seventy-three million, three hundred seventy-one thousand, five hundred fifty-three".