6545113021 has 8 divisors (see below), whose sum is σ = 6708464640. Its totient is φ = 6383508768.

The previous prime is 6545113009. The next prime is 6545113063. The reversal of 6545113021 is 1203115456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6545113021 - 2²⁹ = 6008242109 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 (6545114021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429256 + ... + 444241.

It is an arithmetic number, because the mean of its divisors is an integer number (838558080).

Almost surely, 2^6545113021 is an apocalyptic number.

It is an amenable number.

6545113021 is a deficient number, since it is larger than the sum of its proper divisors (163351619).

6545113021 is a wasteful number, since it uses less digits than its factorization.

6545113021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873683.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 6545113021 is about 80901.8727904367. The cubic root of 6545113021 is about 1870.5631884845.

Adding to 6545113021 its reverse (1203115456), we get a palindrome (7748228477).

The spelling of 6545113021 in words is "six billion, five hundred forty-five million, one hundred thirteen thousand, twenty-one".