201685336836 has 48 divisors (see below), whose sum is σ = 477803202240. Its totient is φ = 66200048640.

The previous prime is 201685336829. The next prime is 201685336841. The reversal of 201685336836 is 638633586102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2148156 + ... + 2240076.

It is an arithmetic number, because the mean of its divisors is an integer number (9954233380).

Almost surely, 2^201685336836 is an apocalyptic number.

It is an amenable number.

201685336836 is an abundant number, since it is smaller than the sum of its proper divisors (276117865404).

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

201685336836 is a wasteful number, since it uses less digits than its factorization.

201685336836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94724 (or 94722 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 201685336836 in words is "two hundred one billion, six hundred eighty-five million, three hundred thirty-six thousand, eight hundred thirty-six".