6646158982848 has 112 divisors (see below), whose sum is σ = 21923693316864. Its totient is φ = 1726275056640.

The previous prime is 6646158982829. The next prime is 6646158982849. The reversal of 6646158982848 is 8482898516466.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×6646158982848² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6646158982848.

It is not an unprimeable number, because it can be changed into a prime (6646158982849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224760615 + ... + 224790182.

Almost surely, 2^{6646158982848} is an apocalyptic number.

It is an amenable number.

6646158982848 is an abundant number, since it is smaller than the sum of its proper divisors (15277534334016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6646158982848 is a wasteful number, since it uses less digits than its factorization.

6646158982848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449550830 (or 449550820 counting only the distinct ones).

The product of its digits is 1274019840, while the sum is 75.

The spelling of 6646158982848 in words is "six trillion, six hundred forty-six billion, one hundred fifty-eight million, nine hundred eighty-two thousand, eight hundred forty-eight".