20144454432002 has 4 divisors (see below), whose sum is σ = 30216681648006. Its totient is φ = 10072227216000.

The previous prime is 20144454431993. The next prime is 20144454432017. The reversal of 20144454432002 is 20023445444102.

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

It can be written as a sum of positive squares in only one way, i.e., 11688391731241 + 8456062700761 = 3418829^2 + 2907931^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5036113607999 + ... + 5036113608002.

Almost surely, 2^{20144454432002} is an apocalyptic number.

20144454432002 is a deficient number, since it is larger than the sum of its proper divisors (10072227216004).

20144454432002 is a wasteful number, since it uses less digits than its factorization.

20144454432002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10072227216003.

The product of its (nonzero) digits is 122880, while the sum is 35.

Adding to 20144454432002 its reverse (20023445444102), we get a palindrome (40167899876104).

The spelling of 20144454432002 in words is "twenty trillion, one hundred forty-four billion, four hundred fifty-four million, four hundred thirty-two thousand, two".