206776716 has 48 divisors (see below), whose sum is σ = 506145024. Its totient is φ = 65576896.

The previous prime is 206776709. The next prime is 206776741. The reversal of 206776716 is 617677602.

It is a super-2 number, since 2×206776716² = 85513220559489312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52471 + ... + 56273.

It is an arithmetic number, because the mean of its divisors is an integer number (10544688).

Almost surely, 2^206776716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206776716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253072512).

206776716 is an abundant number, since it is smaller than the sum of its proper divisors (299368308).

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

206776716 is a wasteful number, since it uses less digits than its factorization.

206776716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4030 (or 4028 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 206776716 is about 14379.7328208837. The cubic root of 206776716 is about 591.3353990179.

The spelling of 206776716 in words is "two hundred six million, seven hundred seventy-six thousand, seven hundred sixteen".