206298640930 has 16 divisors (see below), whose sum is σ = 371344678200. Its totient is φ = 82517873152.

The previous prime is 206298640897. The next prime is 206298640949. The reversal of 206298640930 is 39046892602.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 155036700009 + 51261940921 = 393747^2 + 226411^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450546 + ... + 784594.

Almost surely, 2^206298640930 is an apocalyptic number.

206298640930 is a deficient number, since it is larger than the sum of its proper divisors (165046037270).

206298640930 is a wasteful number, since it uses less digits than its factorization.

206298640930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395813.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The spelling of 206298640930 in words is "two hundred six billion, two hundred ninety-eight million, six hundred forty thousand, nine hundred thirty".