20158933201 has 4 divisors (see below), whose sum is σ = 21991563504. Its totient is φ = 18326302900.

The previous prime is 20158933199. The next prime is 20158933229. The reversal of 20158933201 is 10233985102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20158933201 - 2¹ = 20158933199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20158933261) 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, 916315135 + ... + 916315156.

It is an arithmetic number, because the mean of its divisors is an integer number (5497890876).

Almost surely, 2^20158933201 is an apocalyptic number.

It is an amenable number.

20158933201 is a deficient number, since it is larger than the sum of its proper divisors (1832630303).

20158933201 is a wasteful number, since it uses less digits than its factorization.

20158933201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832630302.

The product of its (nonzero) digits is 12960, while the sum is 34.

It can be divided in two parts, 20158 and 933201, that added together give a palindrome (953359).

The spelling of 20158933201 in words is "twenty billion, one hundred fifty-eight million, nine hundred thirty-three thousand, two hundred one".