203103626660406 has 128 divisors (see below), whose sum is σ = 488058777216000. Its totient is φ = 62388907644672.

The previous prime is 203103626660383. The next prime is 203103626660411. The reversal of 203103626660406 is 604066626301302.

203103626660406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 151446130 + ... + 152781338.

It is an arithmetic number, because the mean of its divisors is an integer number (3812959197000).

Almost surely, 2^{203103626660406} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203103626660406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244029388608000).

203103626660406 is an abundant number, since it is smaller than the sum of its proper divisors (284955150555594).

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

203103626660406 is a wasteful number, since it uses less digits than its factorization.

203103626660406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339283 (or 1339277 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 45.

The spelling of 203103626660406 in words is "two hundred three trillion, one hundred three billion, six hundred twenty-six million, six hundred sixty thousand, four hundred six".