16109373644 has 48 divisors (see below), whose sum is σ = 34715623488. Its totient is φ = 6369539328.

The previous prime is 16109373641. The next prime is 16109373659. The reversal of 16109373644 is 44637390161.

It is a junction number, because it is equal to n+sod(n) for n = 16109373595 and 16109373604.

It is not an unprimeable number, because it can be changed into a prime (16109373641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736514 + ... + 758070.

It is an arithmetic number, because the mean of its divisors is an integer number (723242156).

Almost surely, 2^16109373644 is an apocalyptic number.

16109373644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16109373644 is an abundant number, since it is smaller than the sum of its proper divisors (18606249844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16109373644 is a wasteful number, since it uses less digits than its factorization.

16109373644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23634 (or 23632 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 16109373644 in words is "sixteen billion, one hundred nine million, three hundred seventy-three thousand, six hundred forty-four".