50001099966 has 48 divisors (see below), whose sum is σ = 109773480960. Its totient is φ = 16447264080.

The previous prime is 50001099961. The next prime is 50001100007. The reversal of 50001099966 is 66999010005.

It is a super-3 number, since 3×50001099966³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50001099961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 362851 + ... + 481313.

It is an arithmetic number, because the mean of its divisors is an integer number (2286947520).

Almost surely, 2^50001099966 is an apocalyptic number.

50001099966 is an abundant number, since it is smaller than the sum of its proper divisors (59772380994).

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

50001099966 is a wasteful number, since it uses less digits than its factorization.

50001099966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118781 (or 118778 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The spelling of 50001099966 in words is "fifty billion, one million, ninety-nine thousand, nine hundred sixty-six".