203406216634246 has 16 divisors (see below), whose sum is σ = 306492895433088. Its totient is φ = 101241963892800.

The previous prime is 203406216634219. The next prime is 203406216634261. The reversal of 203406216634246 is 642436612604302.

It is a self number, because there is not a number n which added to its sum of digits gives 203406216634246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2521365 + ... + 20326576.

It is an arithmetic number, because the mean of its divisors is an integer number (19155805964568).

Almost surely, 2^{203406216634246} is an apocalyptic number.

203406216634246 is a deficient number, since it is larger than the sum of its proper divisors (103086678798842).

203406216634246 is a wasteful number, since it uses less digits than its factorization.

203406216634246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22868127.

The product of its (nonzero) digits is 5971968, while the sum is 49.

The spelling of 203406216634246 in words is "two hundred three trillion, four hundred six billion, two hundred sixteen million, six hundred thirty-four thousand, two hundred forty-six".