16880693881 has 8 divisors (see below), whose sum is σ = 18309619944. Its totient is φ = 15500206080.

The previous prime is 16880693861. The next prime is 16880693891. The reversal of 16880693881 is 18839608861.

It can be written as a sum of positive squares in 4 ways, for example, as 3345465600 + 13535228281 = 57840^2 + 116341^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16880693881 - 2²⁹ = 16343822969 is a prime.

It is a super-2 number, since 2×16880693881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16880693831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12108840 + ... + 12110233.

It is an arithmetic number, because the mean of its divisors is an integer number (2288702493).

Almost surely, 2^16880693881 is an apocalyptic number.

It is an amenable number.

16880693881 is a deficient number, since it is larger than the sum of its proper divisors (1428926063).

16880693881 is a wasteful number, since it uses less digits than its factorization.

16880693881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24219131.

The product of its (nonzero) digits is 3981312, while the sum is 58.

The spelling of 16880693881 in words is "sixteen billion, eight hundred eighty million, six hundred ninety-three thousand, eight hundred eighty-one".