201255105066 has 16 divisors (see below), whose sum is σ = 407359731744. Its totient is φ = 66276781424.

The previous prime is 201255104971. The next prime is 201255105067. The reversal of 201255105066 is 660501552102.

It is not an unprimeable number, because it can be changed into a prime (201255105067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202062861 + ... + 202063856.

It is an arithmetic number, because the mean of its divisors is an integer number (25459983234).

Almost surely, 2^201255105066 is an apocalyptic number.

201255105066 is an abundant number, since it is smaller than the sum of its proper divisors (206104626678).

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

201255105066 is a wasteful number, since it uses less digits than its factorization.

201255105066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404126805.

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 201255105066 its reverse (660501552102), we get a palindrome (861756657168).

The spelling of 201255105066 in words is "two hundred one billion, two hundred fifty-five million, one hundred five thousand, sixty-six".