201115707018 has 16 divisors (see below), whose sum is σ = 402245535360. Its totient is φ = 67036215456.

The previous prime is 201115707007. The next prime is 201115707083. The reversal of 201115707018 is 810707511102.

It is a self number, because there is not a number n which added to its sum of digits gives 201115707018.

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, 398530 + ... + 749037.

It is an arithmetic number, because the mean of its divisors is an integer number (25140345960).

Almost surely, 2^201115707018 is an apocalyptic number.

201115707018 is an abundant number, since it is smaller than the sum of its proper divisors (201129828342).

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

201115707018 is a wasteful number, since it uses less digits than its factorization.

201115707018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176781.

The product of its (nonzero) digits is 3920, while the sum is 33.

The spelling of 201115707018 in words is "two hundred one billion, one hundred fifteen million, seven hundred seven thousand, eighteen".