501666060606 has 16 divisors (see below), whose sum is σ = 1056139075200. Its totient is φ = 158420861208.

The previous prime is 501666060583. The next prime is 501666060613. The reversal of 501666060606 is 606060666105.

501666060606 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

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, 2200289626 + ... + 2200289853.

It is an arithmetic number, because the mean of its divisors is an integer number (66008692200).

Almost surely, 2^501666060606 is an apocalyptic number.

501666060606 is an abundant number, since it is smaller than the sum of its proper divisors (554473014594).

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

501666060606 is a wasteful number, since it uses less digits than its factorization.

501666060606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4400579503.

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 501666060606 in words is "five hundred one billion, six hundred sixty-six million, sixty thousand, six hundred six".