16723174845 has 16 divisors (see below), whose sum is σ = 28815316992. Its totient is φ = 8232947520.

The previous prime is 16723174841. The next prime is 16723174859. The reversal of 16723174845 is 54847132761.

It is not a de Polignac number, because 16723174845 - 2² = 16723174841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16723174794 and 16723174803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16723174841) 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, 42879741 + ... + 42880130.

It is an arithmetic number, because the mean of its divisors is an integer number (1800957312).

Almost surely, 2^16723174845 is an apocalyptic number.

16723174845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16723174845 is a deficient number, since it is larger than the sum of its proper divisors (12092142147).

16723174845 is a wasteful number, since it uses less digits than its factorization.

16723174845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85759892.

The product of its digits is 1128960, while the sum is 48.

The spelling of 16723174845 in words is "sixteen billion, seven hundred twenty-three million, one hundred seventy-four thousand, eight hundred forty-five".