201125026165 has 32 divisors (see below), whose sum is σ = 287860432896. Its totient is φ = 131900028480.

The previous prime is 201125026159. The next prime is 201125026187. The reversal of 201125026165 is 561620521102.

It is not a de Polignac number, because 201125026165 - 2¹¹ = 201125024117 is a prime.

It is a super-2 number, since 2×201125026165² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8572000 + ... + 8595430.

It is an arithmetic number, because the mean of its divisors is an integer number (8995638528).

Almost surely, 2^201125026165 is an apocalyptic number.

It is an amenable number.

201125026165 is a deficient number, since it is larger than the sum of its proper divisors (86735406731).

201125026165 is a wasteful number, since it uses less digits than its factorization.

201125026165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34129.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 201125026165 its reverse (561620521102), we get a palindrome (762745547267).

The spelling of 201125026165 in words is "two hundred one billion, one hundred twenty-five million, twenty-six thousand, one hundred sixty-five".