6601243441 has 4 divisors (see below), whose sum is σ = 7109031412. Its totient is φ = 6093455472.

The previous prime is 6601243433. The next prime is 6601243469. The reversal of 6601243441 is 1443421066.

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

It can be written as a sum of positive squares in 2 ways, for example, as 275427216 + 6325816225 = 16596^2 + 79535^2 .

It is not a de Polignac number, because 6601243441 - 2³ = 6601243433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6601243471) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 253893966 + ... + 253893991.

It is an arithmetic number, because the mean of its divisors is an integer number (1777257853).

Almost surely, 2^6601243441 is an apocalyptic number.

It is an amenable number.

6601243441 is a deficient number, since it is larger than the sum of its proper divisors (507787971).

6601243441 is a wasteful number, since it uses less digits than its factorization.

6601243441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507787970.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 6601243441 is about 81248.0365362758. The cubic root of 6601243441 is about 1875.8952468888.

The spelling of 6601243441 in words is "six billion, six hundred one million, two hundred forty-three thousand, four hundred forty-one".