20016652065 has 8 divisors (see below), whose sum is σ = 32026643328. Its totient is φ = 10675547760.

The previous prime is 20016652063. The next prime is 20016652079. The reversal of 20016652065 is 56025661002.

It is a happy number.

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

It is not a de Polignac number, because 20016652065 - 2¹ = 20016652063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20016652063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667221721 + ... + 667221750.

It is an arithmetic number, because the mean of its divisors is an integer number (4003330416).

Almost surely, 2^20016652065 is an apocalyptic number.

It is an amenable number.

20016652065 is a deficient number, since it is larger than the sum of its proper divisors (12009991263).

20016652065 is a wasteful number, since it uses less digits than its factorization.

20016652065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334443479.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 20016652065 in words is "twenty billion, sixteen million, six hundred fifty-two thousand, sixty-five".