16080676981 has 2 divisors, whose sum is σ = 16080676982. Its totient is φ = 16080676980.

The previous prime is 16080676951. The next prime is 16080676991. The reversal of 16080676981 is 18967608061.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11053157956 + 5027519025 = 105134^2 + 70905^2 .

It is an emirp because it is prime and its reverse (18967608061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16080676981 - 2¹³ = 16080668789 is a prime.

It is a super-2 number, since 2×16080676981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16080676921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8040338490 + 8040338491.

It is an arithmetic number, because the mean of its divisors is an integer number (8040338491).

Almost surely, 2^16080676981 is an apocalyptic number.

It is an amenable number.

16080676981 is a deficient number, since it is larger than the sum of its proper divisors (1).

16080676981 is an equidigital number, since it uses as much as digits as its factorization.

16080676981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 16080676981 in words is "sixteen billion, eighty million, six hundred seventy-six thousand, nine hundred eighty-one".