16080696981 has 12 divisors (see below), whose sum is σ = 23665932108. Its totient is φ = 10518191424.

The previous prime is 16080696979. The next prime is 16080697013. The reversal of 16080696981 is 18969608061.

It can be written as a sum of positive squares in 2 ways, for example, as 14088503025 + 1992193956 = 118695^2 + 44634^2 .

It is not a de Polignac number, because 16080696981 - 2¹ = 16080696979 is a prime.

It is a super-2 number, since 2×16080696981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16080676981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16855600 + ... + 16856553.

It is an arithmetic number, because the mean of its divisors is an integer number (1972161009).

Almost surely, 2^16080696981 is an apocalyptic number.

It is an amenable number.

16080696981 is a deficient number, since it is larger than the sum of its proper divisors (7585235127).

16080696981 is a wasteful number, since it uses less digits than its factorization.

16080696981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33712212 (or 33712209 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The spelling of 16080696981 in words is "sixteen billion, eighty million, six hundred ninety-six thousand, nine hundred eighty-one".