16840551705 has 8 divisors (see below), whose sum is σ = 26944882752. Its totient is φ = 8981627568.

The previous prime is 16840551701. The next prime is 16840551719. The reversal of 16840551705 is 50715504861.

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

It is not a de Polignac number, because 16840551705 - 2² = 16840551701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16840551701) 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, 561351709 + ... + 561351738.

It is an arithmetic number, because the mean of its divisors is an integer number (3368110344).

Almost surely, 2^16840551705 is an apocalyptic number.

16840551705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16840551705 is a deficient number, since it is larger than the sum of its proper divisors (10104331047).

16840551705 is a wasteful number, since it uses less digits than its factorization.

16840551705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122703455.

The product of its (nonzero) digits is 168000, while the sum is 42.

The spelling of 16840551705 in words is "sixteen billion, eight hundred forty million, five hundred fifty-one thousand, seven hundred five".