6455540044 has 6 divisors (see below), whose sum is σ = 11297195084. Its totient is φ = 3227770020.

The previous prime is 6455540017. The next prime is 6455540089. The reversal of 6455540044 is 4400455546.

It is a junction number, because it is equal to n+sod(n) for n = 6455539985 and 6455540012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806942502 + ... + 806942509.

Almost surely, 2^6455540044 is an apocalyptic number.

It is an amenable number.

6455540044 is a deficient number, since it is larger than the sum of its proper divisors (4841655040).

6455540044 is a wasteful number, since it uses less digits than its factorization.

6455540044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613885015 (or 1613885013 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

The square root of 6455540044 is about 80346.3754254042. The cubic root of 6455540044 is about 1861.9907813424.

The spelling of 6455540044 in words is "six billion, four hundred fifty-five million, five hundred forty thousand, forty-four".