201150165503 has 12 divisors (see below), whose sum is σ = 231270933072. Its totient is φ = 171381839520.

The previous prime is 201150165493. The next prime is 201150165511. The reversal of 201150165503 is 305561051102.

It is not a de Polignac number, because 201150165503 - 2²⁸ = 200881730047 is a prime.

It is a super-2 number, since 2×201150165503² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201150165563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 319958 + ... + 710403.

It is an arithmetic number, because the mean of its divisors is an integer number (19272577756).

Almost surely, 2^201150165503 is an apocalyptic number.

201150165503 is a deficient number, since it is larger than the sum of its proper divisors (30120767569).

201150165503 is an equidigital number, since it uses as much as digits as its factorization.

201150165503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030702 (or 1030535 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 201150165503 in words is "two hundred one billion, one hundred fifty million, one hundred sixty-five thousand, five hundred three".