201850020015 has 32 divisors (see below), whose sum is σ = 369193714176. Its totient is φ = 92250161280.

The previous prime is 201850020007. The next prime is 201850020041. The reversal of 201850020015 is 510020058102.

It is not a de Polignac number, because 201850020015 - 2³ = 201850020007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155100 + ... + 654030.

It is an arithmetic number, because the mean of its divisors is an integer number (11537303568).

Almost surely, 2^201850020015 is an apocalyptic number.

201850020015 is a deficient number, since it is larger than the sum of its proper divisors (167343694161).

201850020015 is a wasteful number, since it uses less digits than its factorization.

201850020015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502799.

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 201850020015 its reverse (510020058102), we get a palindrome (711870078117).

The spelling of 201850020015 in words is "two hundred one billion, eight hundred fifty million, twenty thousand, fifteen".