16771804036 has 81 divisors (see below), whose sum is σ = 33877199181. Its totient is φ = 7260624384.

The previous prime is 16771803977. The next prime is 16771804067. The reversal of 16771804036 is 63040817761.

The square root of 16771804036 is 129506.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 1754772100 + 15017031936 = 41890^2 + 122544^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16771803983 and 16771804001.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 57241506 + ... + 57241798.

Almost surely, 2^16771804036 is an apocalyptic number.

16771804036 is the 129506-th square number.

It is an amenable number.

16771804036 is an abundant number, since it is smaller than the sum of its proper divisors (17105395145).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16771804036 is a wasteful number, since it uses less digits than its factorization.

16771804036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 16771804036 in words is "sixteen billion, seven hundred seventy-one million, eight hundred four thousand, thirty-six".