6662369620478 has 32 divisors (see below), whose sum is σ = 11741300282880. Its totient is φ = 2795251995360.

The previous prime is 6662369620477. The next prime is 6662369620513. The reversal of 6662369620478 is 8740269632666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6662369620477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4886783 + ... + 6099621.

It is an arithmetic number, because the mean of its divisors is an integer number (366915633840).

Almost surely, 2^{6662369620478} is an apocalyptic number.

6662369620478 is a deficient number, since it is larger than the sum of its proper divisors (5078930662402).

6662369620478 is a wasteful number, since it uses less digits than its factorization.

6662369620478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232072.

The product of its (nonzero) digits is 188116992, while the sum is 65.

The spelling of 6662369620478 in words is "six trillion, six hundred sixty-two billion, three hundred sixty-nine million, six hundred twenty thousand, four hundred seventy-eight".