6545444662 has 4 divisors (see below), whose sum is σ = 9818166996. Its totient is φ = 3272722330.

The previous prime is 6545444651. The next prime is 6545444671. The reversal of 6545444662 is 2664445456.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1636361164 + ... + 1636361167.

It is an arithmetic number, because the mean of its divisors is an integer number (2454541749).

Almost surely, 2^6545444662 is an apocalyptic number.

6545444662 is a deficient number, since it is larger than the sum of its proper divisors (3272722334).

6545444662 is a wasteful number, since it uses less digits than its factorization.

6545444662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3272722333.

The product of its digits is 2764800, while the sum is 46.

The square root of 6545444662 is about 80903.9224141821. The cubic root of 6545444662 is about 1870.5947817749.

The spelling of 6545444662 in words is "six billion, five hundred forty-five million, four hundred forty-four thousand, six hundred sixty-two".