16119044611609 has 9 divisors (see below), whose sum is σ = 16219199629269. Its totient is φ = 16019504361180.

The previous prime is 16119044611601. The next prime is 16119044611633. The reversal of 16119044611609 is 90611644091161.

The square root of 16119044611609 is 4014853.

It is a perfect power (a square), and thus also a powerful number.

16119044611609 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 16119044611609 - 2³ = 16119044611601 is a prime.

It is a super-2 number, since 2×16119044611609² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16119044611601) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 654408724 + ... + 654433354.

It is an arithmetic number, because the mean of its divisors is an integer number (1802133292141).

Almost surely, 2^{16119044611609} is an apocalyptic number.

16119044611609 is the 4014853-rd square number.

16119044611609 is the 2007427-th centered octagonal number.

It is an amenable number.

16119044611609 is a deficient number, since it is larger than the sum of its proper divisors (100155017660).

16119044611609 is an frugal number, since it uses more digits than its factorization.

16119044611609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49588 (or 24794 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 49.

Multiplying 16119044611609 by its sum of digits (49), we get a square (789833185968841 = 28103971²).

The spelling of 16119044611609 in words is "sixteen trillion, one hundred nineteen billion, forty-four million, six hundred eleven thousand, six hundred nine".