203420463156 has 48 divisors (see below), whose sum is σ = 528800395200. Its totient is φ = 67625019936.

The previous prime is 203420463133. The next prime is 203420463157. The reversal of 203420463156 is 651364024302.

203420463156 is a `hidden beast` number, since 2 + 0 + 3 + 42 + 0 + 463 + 156 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 203420463156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203420463157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2484546 + ... + 2565113.

It is an arithmetic number, because the mean of its divisors is an integer number (11016674900).

Almost surely, 2^203420463156 is an apocalyptic number.

It is an amenable number.

203420463156 is an abundant number, since it is smaller than the sum of its proper divisors (325379932044).

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

203420463156 is a wasteful number, since it uses less digits than its factorization.

203420463156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050045 (or 5050037 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 203420463156 its reverse (651364024302), we get a palindrome (854784487458).

The spelling of 203420463156 in words is "two hundred three billion, four hundred twenty million, four hundred sixty-three thousand, one hundred fifty-six".