20041251244 has 24 divisors (see below), whose sum is σ = 42440297760. Its totient is φ = 8083865856.

The previous prime is 20041251233. The next prime is 20041251353. The reversal of 20041251244 is 44215214002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21051259 + ... + 21052210.

It is an arithmetic number, because the mean of its divisors is an integer number (1768345740).

Almost surely, 2^20041251244 is an apocalyptic number.

It is an amenable number.

20041251244 is an abundant number, since it is smaller than the sum of its proper divisors (22399046516).

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

20041251244 is a wasteful number, since it uses less digits than its factorization.

20041251244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42103497 (or 42103495 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 20041251244 its reverse (44215214002), we get a palindrome (64256465246).

The spelling of 20041251244 in words is "twenty billion, forty-one million, two hundred fifty-one thousand, two hundred forty-four".