203606620066 has 16 divisors (see below), whose sum is σ = 328968903168. Its totient is φ = 94235882400.

The previous prime is 203606620031. The next prime is 203606620079. The reversal of 203606620066 is 660026606302.

203606620066 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 71389395 + ... + 71392246.

It is an arithmetic number, because the mean of its divisors is an integer number (20560556448).

Almost surely, 2^203606620066 is an apocalyptic number.

203606620066 is a deficient number, since it is larger than the sum of its proper divisors (125362283102).

203606620066 is a wasteful number, since it uses less digits than its factorization.

203606620066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142781697.

The product of its (nonzero) digits is 93312, while the sum is 37.

The spelling of 203606620066 in words is "two hundred three billion, six hundred six million, six hundred twenty thousand, sixty-six".