201266065755 has 24 divisors (see below), whose sum is σ = 348927652320. Its totient is φ = 107321448960.

The previous prime is 201266065747. The next prime is 201266065757. The reversal of 201266065755 is 557560662102.

201266065755 is a `hidden beast` number, since 2 + 0 + 12 + 6 + 60 + 6 + 575 + 5 = 666.

It is not a de Polignac number, because 201266065755 - 2³ = 201266065747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 201266065755.

It is not an unprimeable number, because it can be changed into a prime (201266065757) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185815 + ... + 661104.

It is an arithmetic number, because the mean of its divisors is an integer number (14538652180).

Almost surely, 2^201266065755 is an apocalyptic number.

201266065755 is a deficient number, since it is larger than the sum of its proper divisors (147661586565).

201266065755 is a wasteful number, since it uses less digits than its factorization.

201266065755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852211 (or 852208 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The spelling of 201266065755 in words is "two hundred one billion, two hundred sixty-six million, sixty-five thousand, seven hundred fifty-five".