206298640898 has 32 divisors (see below), whose sum is σ = 369133058304. Its totient is φ = 84546266112.

The previous prime is 206298640897. The next prime is 206298640949. The reversal of 206298640898 is 898046892602.

It is a self number, because there is not a number n which added to its sum of digits gives 206298640898.

It is not an unprimeable number, because it can be changed into a prime (206298640897) by changing a digit.

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, 1103786 + ... + 1277082.

It is an arithmetic number, because the mean of its divisors is an integer number (11535408072).

Almost surely, 2^206298640898 is an apocalyptic number.

206298640898 is a deficient number, since it is larger than the sum of its proper divisors (162834417406).

206298640898 is a wasteful number, since it uses less digits than its factorization.

206298640898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177026.

The product of its (nonzero) digits is 23887872, while the sum is 62.

The spelling of 206298640898 in words is "two hundred six billion, two hundred ninety-eight million, six hundred forty thousand, eight hundred ninety-eight".