204462643442156 has 48 divisors (see below), whose sum is σ = 403802016337440. Its totient is φ = 89731861739520.

The previous prime is 204462643442149. The next prime is 204462643442209. The reversal of 204462643442156 is 651244346264402.

It is a junction number, because it is equal to n+sod(n) for n = 204462643442098 and 204462643442107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125813930 + ... + 127428686.

It is an arithmetic number, because the mean of its divisors is an integer number (8412542007030).

Almost surely, 2^{204462643442156} is an apocalyptic number.

It is an amenable number.

204462643442156 is a deficient number, since it is larger than the sum of its proper divisors (199339372895284).

204462643442156 is a wasteful number, since it uses less digits than its factorization.

204462643442156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714034 (or 1714032 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 53.

The spelling of 204462643442156 in words is "two hundred four trillion, four hundred sixty-two billion, six hundred forty-three million, four hundred forty-two thousand, one hundred fifty-six".