20841224953 has 8 divisors (see below), whose sum is σ = 22396541472. Its totient is φ = 19322504256.

The previous prime is 20841224939. The next prime is 20841224977. The reversal of 20841224953 is 35942214802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20841224953 - 2⁹ = 20841224441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20841224923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9147775 + ... + 9150052.

It is an arithmetic number, because the mean of its divisors is an integer number (2799567684).

Almost surely, 2^20841224953 is an apocalyptic number.

It is an amenable number.

20841224953 is a deficient number, since it is larger than the sum of its proper divisors (1555316519).

20841224953 is a wasteful number, since it uses less digits than its factorization.

20841224953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18297911.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 20841224953 in words is "twenty billion, eight hundred forty-one million, two hundred twenty-four thousand, nine hundred fifty-three".