20145430024 has 16 divisors (see below), whose sum is σ = 37854270720. Its totient is φ = 10050957840.

The previous prime is 20145430013. The next prime is 20145430033. The reversal of 20145430024 is 42003454102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2715712 + ... + 2723119.

It is an arithmetic number, because the mean of its divisors is an integer number (2365891920).

Almost surely, 2^20145430024 is an apocalyptic number.

It is an amenable number.

20145430024 is a deficient number, since it is larger than the sum of its proper divisors (17708840696).

20145430024 is a wasteful number, since it uses less digits than its factorization.

20145430024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5439300 (or 5439296 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20145430024 its reverse (42003454102), we get a palindrome (62148884126).

The spelling of 20145430024 in words is "twenty billion, one hundred forty-five million, four hundred thirty thousand, twenty-four".