426603321546666 has 16 divisors (see below), whose sum is σ = 930770883374688. Its totient is φ = 129273733802000.

The previous prime is 426603321546653. The next prime is 426603321546673. The reversal of 426603321546666 is 666645123306624.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3231843344985 + ... + 3231843345116.

It is an arithmetic number, because the mean of its divisors is an integer number (58173180210918).

Almost surely, 2^{426603321546666} is an apocalyptic number.

426603321546666 is an abundant number, since it is smaller than the sum of its proper divisors (504167561828022).

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

426603321546666 is a wasteful number, since it uses less digits than its factorization.

426603321546666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6463686690117.

The product of its (nonzero) digits is 134369280, while the sum is 60.

The spelling of 426603321546666 in words is "four hundred twenty-six trillion, six hundred three billion, three hundred twenty-one million, five hundred forty-six thousand, six hundred sixty-six".