20430132452144 has 40 divisors (see below), whose sum is σ = 41559494925360. Its totient is φ = 9715616241408.

The previous prime is 20430132452143. The next prime is 20430132452161. The reversal of 20430132452144 is 44125423103402.

It is not an unprimeable number, because it can be changed into a prime (20430132452143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328554419 + ... + 328616594.

It is an arithmetic number, because the mean of its divisors is an integer number (1038987373134).

Almost surely, 2^{20430132452144} is an apocalyptic number.

It is an amenable number.

20430132452144 is an abundant number, since it is smaller than the sum of its proper divisors (21129362473216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20430132452144 is a wasteful number, since it uses less digits than its factorization.

20430132452144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657171117 (or 657171111 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 20430132452144 its reverse (44125423103402), we get a palindrome (64555555555546).

The spelling of 20430132452144 in words is "twenty trillion, four hundred thirty billion, one hundred thirty-two million, four hundred fifty-two thousand, one hundred forty-four".