203450646534 has 16 divisors (see below), whose sum is σ = 412475284272. Its totient is φ = 66887883648.

The previous prime is 203450646467. The next prime is 203450646667. The reversal of 203450646534 is 435646054302.

It is a happy number.

203450646534 is digitally balanced in base 3, 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232249159 + ... + 232250034.

It is an arithmetic number, because the mean of its divisors is an integer number (25779705267).

Almost surely, 2^203450646534 is an apocalyptic number.

203450646534 is an abundant number, since it is smaller than the sum of its proper divisors (209024637738).

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

203450646534 is a wasteful number, since it uses less digits than its factorization.

203450646534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464499271.

The product of its (nonzero) digits is 1036800, while the sum is 42.

The spelling of 203450646534 in words is "two hundred three billion, four hundred fifty million, six hundred forty-six thousand, five hundred thirty-four".