16540480201 has 4 divisors (see below), whose sum is σ = 18903405952. Its totient is φ = 14177554452.

The previous prime is 16540480171. The next prime is 16540480219. The reversal of 16540480201 is 10208404561.

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 16540480201 - 2⁵ = 16540480169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16540480241) 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, 1181462865 + ... + 1181462878.

It is an arithmetic number, because the mean of its divisors is an integer number (4725851488).

Almost surely, 2^16540480201 is an apocalyptic number.

It is an amenable number.

16540480201 is a deficient number, since it is larger than the sum of its proper divisors (2362925751).

16540480201 is an equidigital number, since it uses as much as digits as its factorization.

16540480201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362925750.

The product of its (nonzero) digits is 7680, while the sum is 31.

Adding to 16540480201 its reverse (10208404561), we get a palindrome (26748884762).

The spelling of 16540480201 in words is "sixteen billion, five hundred forty million, four hundred eighty thousand, two hundred one".