6545646411 has 4 divisors (see below), whose sum is σ = 8727528552. Its totient is φ = 4363764272.

The previous prime is 6545646389. The next prime is 6545646451. The reversal of 6545646411 is 1146465456.

It is a happy number.

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 6545646411 - 2¹⁸ = 6545384267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6545646451) 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, 1090941066 + ... + 1090941071.

It is an arithmetic number, because the mean of its divisors is an integer number (2181882138).

Almost surely, 2^6545646411 is an apocalyptic number.

6545646411 is a deficient number, since it is larger than the sum of its proper divisors (2181882141).

6545646411 is a wasteful number, since it uses less digits than its factorization.

6545646411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181882140.

The product of its digits is 345600, while the sum is 42.

The square root of 6545646411 is about 80905.1692477063. The cubic root of 6545646411 is about 1870.6140005736.

The spelling of 6545646411 in words is "six billion, five hundred forty-five million, six hundred forty-six thousand, four hundred eleven".