16427703349991 has 16 divisors (see below), whose sum is σ = 17618981817600. Its totient is φ = 15271168852800.

The previous prime is 16427703349987. The next prime is 16427703350087. The reversal of 16427703349991 is 19994330772461.

It is a cyclic number.

It is not a de Polignac number, because 16427703349991 - 2² = 16427703349987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16427703349931) 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, 28572446 + ... + 29141723.

It is an arithmetic number, because the mean of its divisors is an integer number (1101186363600).

Almost surely, 2^{16427703349991} is an apocalyptic number.

16427703349991 is a deficient number, since it is larger than the sum of its proper divisors (1191278467609).

16427703349991 is a wasteful number, since it uses less digits than its factorization.

16427703349991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57714470.

The product of its (nonzero) digits is 61725888, while the sum is 65.

The spelling of 16427703349991 in words is "sixteen trillion, four hundred twenty-seven billion, seven hundred three million, three hundred forty-nine thousand, nine hundred ninety-one".