201165515206 has 4 divisors (see below), whose sum is σ = 301748272812. Its totient is φ = 100582757602.

The previous prime is 201165515189. The next prime is 201165515267. The reversal of 201165515206 is 602515561102.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50291378800 + ... + 50291378803.

It is an arithmetic number, because the mean of its divisors is an integer number (75437068203).

Almost surely, 2^201165515206 is an apocalyptic number.

201165515206 is a deficient number, since it is larger than the sum of its proper divisors (100582757606).

201165515206 is a wasteful number, since it uses less digits than its factorization.

201165515206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100582757605.

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 201165515206 in words is "two hundred one billion, one hundred sixty-five million, five hundred fifteen thousand, two hundred six".