20430146025163 has 4 divisors (see below), whose sum is σ = 23348738314480. Its totient is φ = 17511553735848.

The previous prime is 20430146025049. The next prime is 20430146025181. The reversal of 20430146025163 is 36152064103402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20430146025163 - 2¹⁷ = 20430145894091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20430146028163) 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, 1459296144648 + ... + 1459296144661.

It is an arithmetic number, because the mean of its divisors is an integer number (5837184578620).

Almost surely, 2^{20430146025163} is an apocalyptic number.

20430146025163 is a deficient number, since it is larger than the sum of its proper divisors (2918592289317).

20430146025163 is an equidigital number, since it uses as much as digits as its factorization.

20430146025163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918592289316.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 20430146025163 in words is "twenty trillion, four hundred thirty billion, one hundred forty-six million, twenty-five thousand, one hundred sixty-three".