5055606666 has 192 divisors, whose sum is σ = 12845454336. Its totient is φ = 1422489600.

The previous prime is 5055606649. The next prime is 5055606667. The reversal of 5055606666 is 6666065505.

It is a super-2 number, since 2×5055606666² = 51118317522607271112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5055606667) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25662880 + ... + 25663076.

It is an arithmetic number, because the mean of its divisors is an integer number (66903408).

Almost surely, 2^5055606666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5055606666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6422727168).

5055606666 is an abundant number, since it is smaller than the sum of its proper divisors (7789847670).

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

5055606666 is a wasteful number, since it uses less digits than its factorization.

5055606666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The square root of 5055606666 is about 71102.7894389524. The cubic root of 5055606666 is about 1716.2916619182.

The spelling of 5055606666 in words is "five billion, fifty-five million, six hundred six thousand, six hundred sixty-six".