20144523405276 has 36 divisors (see below), whose sum is σ = 50933430339792. Its totient is φ = 6713185961664.

The previous prime is 20144523405269. The next prime is 20144523405359. The reversal of 20144523405276 is 67250432544102.

20144523405276 is a `hidden beast` number, since 2 + 0 + 1 + 4 + 4 + 523 + 4 + 0 + 52 + 76 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68817480 + ... + 69109583.

Almost surely, 2^{20144523405276} is an apocalyptic number.

It is an amenable number.

20144523405276 is an abundant number, since it is smaller than the sum of its proper divisors (30788906934516).

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

20144523405276 is a wasteful number, since it uses less digits than its factorization.

20144523405276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137931130 (or 137931125 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 45.

Adding to 20144523405276 its reverse (67250432544102), we get a palindrome (87394955949378).

The spelling of 20144523405276 in words is "twenty trillion, one hundred forty-four billion, five hundred twenty-three million, four hundred five thousand, two hundred seventy-six".