20006550766 has 8 divisors (see below), whose sum is σ = 30039279480. Its totient is φ = 9993457608.

The previous prime is 20006550763. The next prime is 20006550787. The reversal of 20006550766 is 66705560002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20006550763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4906341 + ... + 4910416.

It is an arithmetic number, because the mean of its divisors is an integer number (3754909935).

Almost surely, 2^20006550766 is an apocalyptic number.

20006550766 is a deficient number, since it is larger than the sum of its proper divisors (10032728714).

20006550766 is a wasteful number, since it uses less digits than its factorization.

20006550766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9817778.

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 20006550766 in words is "twenty billion, six million, five hundred fifty thousand, seven hundred sixty-six".