206990616 has 64 divisors (see below), whose sum is σ = 617126400. Its totient is φ = 56567808.

The previous prime is 206990587. The next prime is 206990621. The reversal of 206990616 is 616099602.

It is a super-2 number, since 2×206990616² = 85690230224118912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22921 + ... + 30648.

It is an arithmetic number, because the mean of its divisors is an integer number (9642600).

Almost surely, 2^206990616 is an apocalyptic number.

It is an amenable number.

206990616 is an abundant number, since it is smaller than the sum of its proper divisors (410135784).

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

206990616 is a wasteful number, since it uses less digits than its factorization.

206990616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53608 (or 53604 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 206990616 is about 14387.1684496985. The cubic root of 206990616 is about 591.5392308849.

The spelling of 206990616 in words is "two hundred six million, nine hundred ninety thousand, six hundred sixteen".