16080821710981 has 32 divisors (see below), whose sum is σ = 17106775031808. Its totient is φ = 15084237674880.

The previous prime is 16080821710939. The next prime is 16080821711057. The reversal of 16080821710981 is 18901712808061.

It is a cyclic number.

It is not a de Polignac number, because 16080821710981 - 2⁷ = 16080821710853 is a prime.

It is a super-2 number, since 2×16080821710981² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16080821710181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 635065801 + ... + 635091121.

It is an arithmetic number, because the mean of its divisors is an integer number (534586719744).

Almost surely, 2^{16080821710981} is an apocalyptic number.

It is an amenable number.

16080821710981 is a deficient number, since it is larger than the sum of its proper divisors (1025953320827).

16080821710981 is a wasteful number, since it uses less digits than its factorization.

16080821710981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27241.

The product of its (nonzero) digits is 387072, while the sum is 52.

The spelling of 16080821710981 in words is "sixteen trillion, eighty billion, eight hundred twenty-one million, seven hundred ten thousand, nine hundred eighty-one".