203413515164 has 48 divisors (see below), whose sum is σ = 387649503360. Its totient is φ = 93004692480.

The previous prime is 203413515163. The next prime is 203413515223. The reversal of 203413515164 is 461515314302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203413515163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1726829 + ... + 1840859.

It is an arithmetic number, because the mean of its divisors is an integer number (8076031320).

Almost surely, 2^203413515164 is an apocalyptic number.

It is an amenable number.

203413515164 is a deficient number, since it is larger than the sum of its proper divisors (184235988196).

203413515164 is a wasteful number, since it uses less digits than its factorization.

203413515164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114798 (or 114796 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 203413515164 its reverse (461515314302), we get a palindrome (664928829466).

The spelling of 203413515164 in words is "two hundred three billion, four hundred thirteen million, five hundred fifteen thousand, one hundred sixty-four".