16980823954 has 8 divisors (see below), whose sum is σ = 25494543180. Its totient is φ = 8482642896.

The previous prime is 16980823931. The next prime is 16980823997. The reversal of 16980823954 is 45932808961.

It can be written as a sum of positive squares in 2 ways, for example, as 15074191729 + 1906632225 = 122777^2 + 43665^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 16980823895 and 16980823904.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3881809 + ... + 3886180.

Almost surely, 2^16980823954 is an apocalyptic number.

16980823954 is a deficient number, since it is larger than the sum of its proper divisors (8513719226).

16980823954 is a wasteful number, since it uses less digits than its factorization.

16980823954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7769084.

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 16980823954 in words is "sixteen billion, nine hundred eighty million, eight hundred twenty-three thousand, nine hundred fifty-four".