16545652102231 has 4 divisors (see below), whose sum is σ = 18909316688272. Its totient is φ = 14181987516192.

The previous prime is 16545652102157. The next prime is 16545652102267. The reversal of 16545652102231 is 13220125654561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16545652102231 - 2³¹ = 16543504618583 is a prime.

It is a super-2 number, since 2×16545652102231² (a number of 27 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 (16545652102271) 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, 1181832293010 + ... + 1181832293023.

It is an arithmetic number, because the mean of its divisors is an integer number (4727329172068).

Almost surely, 2^{16545652102231} is an apocalyptic number.

16545652102231 is a deficient number, since it is larger than the sum of its proper divisors (2363664586041).

16545652102231 is an equidigital number, since it uses as much as digits as its factorization.

16545652102231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2363664586040.

The product of its (nonzero) digits is 432000, while the sum is 43.

Adding to 16545652102231 its reverse (13220125654561), we get a palindrome (29765777756792).

The spelling of 16545652102231 in words is "sixteen trillion, five hundred forty-five billion, six hundred fifty-two million, one hundred two thousand, two hundred thirty-one".