6662012806400 has 108 divisors (see below), whose sum is σ = 18845168852832. Its totient is φ = 2284118661120.

The previous prime is 6662012806363. The next prime is 6662012806409. The reversal of 6662012806400 is 46082102666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6662012806409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74308022 + ... + 74397621.

Almost surely, 2^{6662012806400} is an apocalyptic number.

It is an amenable number.

6662012806400 is an abundant number, since it is smaller than the sum of its proper divisors (12183156046432).

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

6662012806400 is a wasteful number, since it uses less digits than its factorization.

6662012806400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148705676 (or 148705657 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 6662012806400 in words is "six trillion, six hundred sixty-two billion, twelve million, eight hundred six thousand, four hundred".