20841224946 has 32 divisors (see below), whose sum is σ = 43108208640. Its totient is φ = 6713191056.

The previous prime is 20841224939. The next prime is 20841224977. The reversal of 20841224946 is 64942214802.

It is a junction number, because it is equal to n+sod(n) for n = 20841224898 and 20841224907.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445476 + ... + 490031.

It is an arithmetic number, because the mean of its divisors is an integer number (1347131520).

Almost surely, 2^20841224946 is an apocalyptic number.

20841224946 is an abundant number, since it is smaller than the sum of its proper divisors (22266983694).

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

20841224946 is a wasteful number, since it uses less digits than its factorization.

20841224946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935638.

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 20841224946 in words is "twenty billion, eight hundred forty-one million, two hundred twenty-four thousand, nine hundred forty-six".