16155190909 has 16 divisors (see below), whose sum is σ = 18986284800. Its totient is φ = 13551975360.

The previous prime is 16155190901. The next prime is 16155190939. The reversal of 16155190909 is 90909155161.

It is not a de Polignac number, because 16155190909 - 2³ = 16155190901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16155190901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415692 + ... + 452890.

It is an arithmetic number, because the mean of its divisors is an integer number (1186642800).

Almost surely, 2^16155190909 is an apocalyptic number.

It is an amenable number.

16155190909 is a deficient number, since it is larger than the sum of its proper divisors (2831093891).

16155190909 is a wasteful number, since it uses less digits than its factorization.

16155190909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40260.

The product of its (nonzero) digits is 109350, while the sum is 46.

The spelling of 16155190909 in words is "sixteen billion, one hundred fifty-five million, one hundred ninety thousand, nine hundred nine".