20658023065 has 8 divisors (see below), whose sum is σ = 24791292288. Its totient is φ = 16525308720.

The previous prime is 20658023053. The next prime is 20658023119. The reversal of 20658023065 is 56032085602.

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 20658023065 - 2⁷ = 20658022937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 51867 + ... + 209776.

It is an arithmetic number, because the mean of its divisors is an integer number (3098911536).

Almost surely, 2^20658023065 is an apocalyptic number.

It is an amenable number.

20658023065 is a deficient number, since it is larger than the sum of its proper divisors (4133269223).

20658023065 is a wasteful number, since it uses less digits than its factorization.

20658023065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277439.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 20658023065 in words is "twenty billion, six hundred fifty-eight million, twenty-three thousand, sixty-five".