16145526609 has 40 divisors (see below), whose sum is σ = 25475808512. Its totient is φ = 10174157280.

The previous prime is 16145526541. The next prime is 16145526629. The reversal of 16145526609 is 90662554161.

16145526609 is a `hidden beast` number, since 1 + 6 + 14 + 5 + 5 + 26 + 609 = 666.

16145526609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16145526609 - 2¹¹ = 16145524561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16145526629) 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 39 ways as a sum of consecutive naturals, for example, 33207 + ... + 182739.

Almost surely, 2^16145526609 is an apocalyptic number.

It is an amenable number.

16145526609 is a deficient number, since it is larger than the sum of its proper divisors (9330281903).

16145526609 is a wasteful number, since it uses less digits than its factorization.

16145526609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149619 (or 149610 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 16145526609 in words is "sixteen billion, one hundred forty-five million, five hundred twenty-six thousand, six hundred nine".