6546421554 has 16 divisors (see below), whose sum is σ = 13227822048. Its totient is φ = 2159644032.

The previous prime is 6546421549. The next prime is 6546421571. The reversal of 6546421554 is 4551246456.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5623492 + ... + 5624655.

It is an arithmetic number, because the mean of its divisors is an integer number (826738878).

Almost surely, 2^6546421554 is an apocalyptic number.

6546421554 is an abundant number, since it is smaller than the sum of its proper divisors (6681400494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6546421554 is a wasteful number, since it uses less digits than its factorization.

6546421554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11248249.

The product of its digits is 576000, while the sum is 42.

The square root of 6546421554 is about 80909.9595476354. The cubic root of 6546421554 is about 1870.6878377484.

The spelling of 6546421554 in words is "six billion, five hundred forty-six million, four hundred twenty-one thousand, five hundred fifty-four".