16920912044 has 24 divisors (see below), whose sum is σ = 30904070400. Its totient is φ = 8091297104.

The previous prime is 16920912037. The next prime is 16920912049. The reversal of 16920912044 is 44021902961.

It is a junction number, because it is equal to n+sod(n) for n = 16920911989 and 16920912007.

It is not an unprimeable number, because it can be changed into a prime (16920912049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 789737 + ... + 810879.

It is an arithmetic number, because the mean of its divisors is an integer number (1287669600).

Almost surely, 2^16920912044 is an apocalyptic number.

It is an amenable number.

16920912044 is a deficient number, since it is larger than the sum of its proper divisors (13983158356).

16920912044 is a wasteful number, since it uses less digits than its factorization.

16920912044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29869 (or 29867 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 16920912044 in words is "sixteen billion, nine hundred twenty million, nine hundred twelve thousand, forty-four".