50101011666 has 24 divisors (see below), whose sum is σ = 108955742220. Its totient is φ = 16638252576.

The previous prime is 50101011617. The next prime is 50101011673. The reversal of 50101011666 is 66611010105.

It can be written as a sum of positive squares in 2 ways, for example, as 39103085025 + 10997926641 = 197745^2 + 104871^2 .

It is a super-2 number, since 2×50101011666² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5168745 + ... + 5178428.

Almost surely, 2^50101011666 is an apocalyptic number.

50101011666 is an abundant number, since it is smaller than the sum of its proper divisors (58854730554).

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

50101011666 is a wasteful number, since it uses less digits than its factorization.

50101011666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10347450 (or 10347447 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The spelling of 50101011666 in words is "fifty billion, one hundred one million, eleven thousand, six hundred sixty-six".