20233055985 has 8 divisors (see below), whose sum is σ = 32372889600. Its totient is φ = 10790963184.

The previous prime is 20233055981. The next prime is 20233055993. The reversal of 20233055985 is 58955033202.

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

It is not a de Polignac number, because 20233055985 - 2² = 20233055981 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20233055981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 674435185 + ... + 674435214.

It is an arithmetic number, because the mean of its divisors is an integer number (4046611200).

Almost surely, 2^20233055985 is an apocalyptic number.

It is an amenable number.

20233055985 is a deficient number, since it is larger than the sum of its proper divisors (12139833615).

20233055985 is a wasteful number, since it uses less digits than its factorization.

20233055985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348870407.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 20233055985 in words is "twenty billion, two hundred thirty-three million, fifty-five thousand, nine hundred eighty-five".