201665055067 has 16 divisors (see below), whose sum is σ = 242397868032. Its totient is φ = 164123537760.

The previous prime is 201665055019. The next prime is 201665055103. The reversal of 201665055067 is 760550566102.

It is not a de Polignac number, because 201665055067 - 2¹¹ = 201665053019 is a prime.

It is a super-2 number, since 2×201665055067² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201665055667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8755783 + ... + 8778784.

It is an arithmetic number, because the mean of its divisors is an integer number (15149866752).

Almost surely, 2^201665055067 is an apocalyptic number.

201665055067 is a deficient number, since it is larger than the sum of its proper divisors (40732812965).

201665055067 is a wasteful number, since it uses less digits than its factorization.

201665055067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17534658.

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 201665055067 in words is "two hundred one billion, six hundred sixty-five million, fifty-five thousand, sixty-seven".