16115522201 has 4 divisors (see below), whose sum is σ = 16963707600. Its totient is φ = 15267336804.

The previous prime is 16115522191. The next prime is 16115522207. The reversal of 16115522201 is 10222551161.

16115522201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16115522201 - 2¹⁴ = 16115505817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16115522207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424092671 + ... + 424092708.

It is an arithmetic number, because the mean of its divisors is an integer number (4240926900).

Almost surely, 2^16115522201 is an apocalyptic number.

It is an amenable number.

16115522201 is a deficient number, since it is larger than the sum of its proper divisors (848185399).

16115522201 is an equidigital number, since it uses as much as digits as its factorization.

16115522201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848185398.

The product of its (nonzero) digits is 1200, while the sum is 26.

The spelling of 16115522201 in words is "sixteen billion, one hundred fifteen million, five hundred twenty-two thousand, two hundred one".