201799606850 has 24 divisors (see below), whose sum is σ = 391666717440. Its totient is φ = 77210283920.

The previous prime is 201799606829. The next prime is 201799606913. The reversal of 201799606850 is 58606997102.

It is a junction number, because it is equal to n+sod(n) for n = 201799606792 and 201799606801.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87737810 + ... + 87740109.

It is an arithmetic number, because the mean of its divisors is an integer number (16319446560).

Almost surely, 2^201799606850 is an apocalyptic number.

201799606850 is a deficient number, since it is larger than the sum of its proper divisors (189867110590).

201799606850 is a wasteful number, since it uses less digits than its factorization.

201799606850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175477954 (or 175477949 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 201799606850 in words is "two hundred one billion, seven hundred ninety-nine million, six hundred six thousand, eight hundred fifty".