201015560501 has 4 divisors (see below), whose sum is σ = 229732069152. Its totient is φ = 172299051852.

The previous prime is 201015560491. The next prime is 201015560507. The reversal of 201015560501 is 105065510102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201015560501 - 2¹⁴ = 201015544117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201015560507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14358254315 + ... + 14358254328.

It is an arithmetic number, because the mean of its divisors is an integer number (57433017288).

Almost surely, 2^201015560501 is an apocalyptic number.

It is an amenable number.

201015560501 is a deficient number, since it is larger than the sum of its proper divisors (28716508651).

201015560501 is an equidigital number, since it uses as much as digits as its factorization.

201015560501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28716508650.

The product of its (nonzero) digits is 1500, while the sum is 26.

The spelling of 201015560501 in words is "two hundred one billion, fifteen million, five hundred sixty thousand, five hundred one".