203980496164 has 9 divisors (see below), whose sum is σ = 356967449041. Its totient is φ = 101989796440.

The previous prime is 203980496149. The next prime is 203980496207. The reversal of 203980496164 is 461694089302.

The square root of 203980496164 is 451642.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 203272936164 + 707560000 = 450858^2 + 26600^2 .

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 790374 + ... + 1016194.

Almost surely, 2^203980496164 is an apocalyptic number.

203980496164 is the 451642-nd square number.

It is an amenable number.

203980496164 is a deficient number, since it is larger than the sum of its proper divisors (152986952877).

203980496164 is an frugal number, since it uses more digits than its factorization.

203980496164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451646 (or 225823 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 52.

The spelling of 203980496164 in words is "two hundred three billion, nine hundred eighty million, four hundred ninety-six thousand, one hundred sixty-four".