501667260066 has 96 divisors (see below), whose sum is σ = 1251765710208. Its totient is φ = 142233304320.

The previous prime is 501667260041. The next prime is 501667260079. The reversal of 501667260066 is 660062766105.

501667260066 is a `hidden beast` number, since 501 + 6 + 67 + 26 + 0 + 0 + 66 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75310776 + ... + 75317436.

It is an arithmetic number, because the mean of its divisors is an integer number (13039226148).

Almost surely, 2^501667260066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501667260066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (625882855104).

501667260066 is an abundant number, since it is smaller than the sum of its proper divisors (750098450142).

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

501667260066 is a wasteful number, since it uses less digits than its factorization.

501667260066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11176 (or 11173 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 501667260066 in words is "five hundred one billion, six hundred sixty-seven million, two hundred sixty thousand, sixty-six".