20065393766 has 8 divisors (see below), whose sum is σ = 32834280744. Its totient is φ = 9120633520.

The previous prime is 20065393759. The next prime is 20065393781. The reversal of 20065393766 is 66739356002.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20065393766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456031655 + ... + 456031698.

It is an arithmetic number, because the mean of its divisors is an integer number (4104285093).

Almost surely, 2^20065393766 is an apocalyptic number.

20065393766 is a deficient number, since it is larger than the sum of its proper divisors (12768886978).

20065393766 is a wasteful number, since it uses less digits than its factorization.

20065393766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912063366.

The product of its (nonzero) digits is 1224720, while the sum is 47.

The spelling of 20065393766 in words is "twenty billion, sixty-five million, three hundred ninety-three thousand, seven hundred sixty-six".