66050116605066 has 64 divisors (see below), whose sum is σ = 144260598583296. Its totient is φ = 19994185022400.

The previous prime is 66050116605059. The next prime is 66050116605071. The reversal of 66050116605066 is 66050661105066.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 502939551 + ... + 503070861.

It is an arithmetic number, because the mean of its divisors is an integer number (2254071852864).

Almost surely, 2^{66050116605066} is an apocalyptic number.

66050116605066 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

66050116605066 is an abundant number, since it is smaller than the sum of its proper divisors (78210481978230).

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

66050116605066 is a wasteful number, since it uses less digits than its factorization.

66050116605066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139267.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 66050116605066 in words is "sixty-six trillion, fifty billion, one hundred sixteen million, six hundred five thousand, sixty-six".