204618106690 has 16 divisors (see below), whose sum is σ = 370962325440. Its totient is φ = 81258413040.

The previous prime is 204618106687. The next prime is 204618106747. The reversal of 204618106690 is 96601816402.

204618106690 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×204618106690² (a number of 23 digits) contains 22 as substring.

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, 73602246 + ... + 73605025.

It is an arithmetic number, because the mean of its divisors is an integer number (23185145340).

Almost surely, 2^204618106690 is an apocalyptic number.

204618106690 is a deficient number, since it is larger than the sum of its proper divisors (166344218750).

204618106690 is a wasteful number, since it uses less digits than its factorization.

204618106690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147207417.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 204618106690 in words is "two hundred four billion, six hundred eighteen million, one hundred six thousand, six hundred ninety".