16718271081716 has 6 divisors (see below), whose sum is σ = 29256974393010. Its totient is φ = 8359135540856.

The previous prime is 16718271081709. The next prime is 16718271081761. The reversal of 16718271081716 is 61718017281761.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15581177290000 + 1137093791716 = 3947300^2 + 1066346^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2089783885211 + ... + 2089783885218.

It is an arithmetic number, because the mean of its divisors is an integer number (4876162398835).

Almost surely, 2^{16718271081716} is an apocalyptic number.

It is an amenable number.

16718271081716 is a deficient number, since it is larger than the sum of its proper divisors (12538703311294).

16718271081716 is a wasteful number, since it uses less digits than its factorization.

16718271081716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4179567770433 (or 4179567770431 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 56.

The spelling of 16718271081716 in words is "sixteen trillion, seven hundred eighteen billion, two hundred seventy-one million, eighty-one thousand, seven hundred sixteen".