201117857260 has 12 divisors (see below), whose sum is σ = 422347500288. Its totient is φ = 80447142896.

The previous prime is 201117857257. The next prime is 201117857261. The reversal of 201117857260 is 62758711102.

It is not an unprimeable number, because it can be changed into a prime (201117857261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5027946412 + ... + 5027946451.

It is an arithmetic number, because the mean of its divisors is an integer number (35195625024).

Almost surely, 2^201117857260 is an apocalyptic number.

201117857260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201117857260 is an abundant number, since it is smaller than the sum of its proper divisors (221229643028).

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

201117857260 is a wasteful number, since it uses less digits than its factorization.

201117857260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10055892872 (or 10055892870 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 40.

The spelling of 201117857260 in words is "two hundred one billion, one hundred seventeen million, eight hundred fifty-seven thousand, two hundred sixty".