6601243445 has 16 divisors (see below), whose sum is σ = 8181077760. Its totient is φ = 5109534144.

The previous prime is 6601243433. The next prime is 6601243469. The reversal of 6601243445 is 5443421066.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6601243445 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66557 + ... + 132786.

It is an arithmetic number, because the mean of its divisors is an integer number (511317360).

Almost surely, 2^6601243445 is an apocalyptic number.

It is an amenable number.

6601243445 is a deficient number, since it is larger than the sum of its proper divisors (1579834315).

6601243445 is a wasteful number, since it uses less digits than its factorization.

6601243445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199564.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 6601243445 is about 81248.0365608917. The cubic root of 6601243445 is about 1875.8952472677.

The spelling of 6601243445 in words is "six billion, six hundred one million, two hundred forty-three thousand, four hundred forty-five".