16706823387 has 8 divisors (see below), whose sum is σ = 22412426304. Its totient is φ = 11069551368.

The previous prime is 16706823361. The next prime is 16706823403. The reversal of 16706823387 is 78332860761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16706823387 - 2²⁴ = 16690046171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16706823307) 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, 17082153 + ... + 17083130.

It is an arithmetic number, because the mean of its divisors is an integer number (2801553288).

Almost surely, 2^16706823387 is an apocalyptic number.

16706823387 is a deficient number, since it is larger than the sum of its proper divisors (5705602917).

16706823387 is a wasteful number, since it uses less digits than its factorization.

16706823387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34165449.

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 16706823387 in words is "sixteen billion, seven hundred six million, eight hundred twenty-three thousand, three hundred eighty-seven".