16126997553 has 12 divisors (see below), whose sum is σ = 23295663300. Its totient is φ = 10750818816.

The previous prime is 16126997539. The next prime is 16126997573. The reversal of 16126997553 is 35579962161.

16126997553 is a `hidden beast` number, since 1 + 61 + 26 + 9 + 9 + 7 + 553 = 666.

16126997553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2508807744 + 13618189809 = 50088^2 + 116697^2 .

It is not a de Polignac number, because 16126997553 - 2¹² = 16126993457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16126997553.

It is not an unprimeable number, because it can be changed into a prime (16126997573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 307173 + ... + 355821.

It is an arithmetic number, because the mean of its divisors is an integer number (1941305275).

Almost surely, 2^16126997553 is an apocalyptic number.

It is an amenable number.

16126997553 is a deficient number, since it is larger than the sum of its proper divisors (7168665747).

16126997553 is a wasteful number, since it uses less digits than its factorization.

16126997553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85488 (or 85485 counting only the distinct ones).

The product of its digits is 3061800, while the sum is 54.

The spelling of 16126997553 in words is "sixteen billion, one hundred twenty-six million, nine hundred ninety-seven thousand, five hundred fifty-three".