501166666169 has 16 divisors (see below), whose sum is σ = 547420608000. Its totient is φ = 456015510720.

The previous prime is 501166666163. The next prime is 501166666199. The reversal of 501166666169 is 961666661105.

It is a cyclic number.

It is not a de Polignac number, because 501166666169 - 2⁴ = 501166666153 is a prime.

It is a super-2 number, since 2×501166666169² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 501166666169.

It is not an unprimeable number, because it can be changed into a prime (501166666163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5259104 + ... + 5353550.

It is an arithmetic number, because the mean of its divisors is an integer number (34213788000).

Almost surely, 2^501166666169 is an apocalyptic number.

It is an amenable number.

501166666169 is a deficient number, since it is larger than the sum of its proper divisors (46253941831).

501166666169 is a wasteful number, since it uses less digits than its factorization.

501166666169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100280.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 501166666169 in words is "five hundred one billion, one hundred sixty-six million, six hundred sixty-six thousand, one hundred sixty-nine".