201550166867 has 16 divisors (see below), whose sum is σ = 232125245952. Its totient is φ = 171423172800.

The previous prime is 201550166849. The next prime is 201550166893. The reversal of 201550166867 is 768661055102.

It is not a de Polignac number, because 201550166867 - 2⁶ = 201550166803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201550106867) 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, 853583 + ... + 1063815.

It is an arithmetic number, because the mean of its divisors is an integer number (14507827872).

Almost surely, 2^201550166867 is an apocalyptic number.

201550166867 is a deficient number, since it is larger than the sum of its proper divisors (30575079085).

201550166867 is a wasteful number, since it uses less digits than its factorization.

201550166867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211298.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 201550166867 in words is "two hundred one billion, five hundred fifty million, one hundred sixty-six thousand, eight hundred sixty-seven".