20665365514 has 8 divisors (see below), whose sum is σ = 31997985408. Its totient is φ = 9999370380.

The previous prime is 20665365503. The next prime is 20665365517. The reversal of 20665365514 is 41556356602.

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

It is not an unprimeable number, because it can be changed into a prime (20665365517) 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, 166656112 + ... + 166656235.

It is an arithmetic number, because the mean of its divisors is an integer number (3999748176).

Almost surely, 2^20665365514 is an apocalyptic number.

20665365514 is a deficient number, since it is larger than the sum of its proper divisors (11332619894).

20665365514 is a wasteful number, since it uses less digits than its factorization.

20665365514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333312380.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 20665365514 in words is "twenty billion, six hundred sixty-five million, three hundred sixty-five thousand, five hundred fourteen".