6646260044 has 12 divisors (see below), whose sum is σ = 12136648944. Its totient is φ = 3178646064.

The previous prime is 6646260011. The next prime is 6646260053. The reversal of 6646260044 is 4400626466.

It is a super-3 number, since 3×6646260044³ (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36120887 + ... + 36121070.

It is an arithmetic number, because the mean of its divisors is an integer number (1011387412).

Almost surely, 2^6646260044 is an apocalyptic number.

It is an amenable number.

6646260044 is a deficient number, since it is larger than the sum of its proper divisors (5490388900).

6646260044 is a wasteful number, since it uses less digits than its factorization.

6646260044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72241984 (or 72241982 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The square root of 6646260044 is about 81524.5977849630. The cubic root of 6646260044 is about 1880.1497583282.

The spelling of 6646260044 in words is "six billion, six hundred forty-six million, two hundred sixty thousand, forty-four".