6554643145 has 8 divisors (see below), whose sum is σ = 8057415240. Its totient is φ = 5115818880.

The previous prime is 6554643127. The next prime is 6554643211. The reversal of 6554643145 is 5413464556.

6554643145 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 38278969 + 6516364176 = 6187^2 + 80724^2 .

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

It is not a de Polignac number, because 6554643145 - 2¹¹ = 6554641097 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15986730 + ... + 15987139.

It is an arithmetic number, because the mean of its divisors is an integer number (1007176905).

Almost surely, 2^6554643145 is an apocalyptic number.

It is an amenable number.

6554643145 is a deficient number, since it is larger than the sum of its proper divisors (1502772095).

6554643145 is a wasteful number, since it uses less digits than its factorization.

6554643145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31973915.

The product of its digits is 864000, while the sum is 43.

The square root of 6554643145 is about 80960.7506449885. The cubic root of 6554643145 is about 1871.4706367227.

The spelling of 6554643145 in words is "six billion, five hundred fifty-four million, six hundred forty-three thousand, one hundred forty-five".