6662245878 has 24 divisors (see below), whose sum is σ = 14439553128. Its totient is φ = 2220027552.

The previous prime is 6662245873. The next prime is 6662245901. The reversal of 6662245878 is 8785422666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6662245871) 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 11 ways as a sum of consecutive naturals, for example, 1575 + ... + 115442.

It is an arithmetic number, because the mean of its divisors is an integer number (601648047).

Almost surely, 2^6662245878 is an apocalyptic number.

6662245878 is an abundant number, since it is smaller than the sum of its proper divisors (7777307250).

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

6662245878 is a wasteful number, since it uses less digits than its factorization.

6662245878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120188 (or 120185 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The square root of 6662245878 is about 81622.5819121155. The cubic root of 6662245878 is about 1881.6559536319.

The spelling of 6662245878 in words is "six billion, six hundred sixty-two million, two hundred forty-five thousand, eight hundred seventy-eight".