20335224990 has 16 divisors (see below), whose sum is σ = 48804540048. Its totient is φ = 5422726656.

The previous prime is 20335224989. The next prime is 20335224997. The reversal of 20335224990 is 9942253302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20335224997) by changing a digit.

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, 338920387 + ... + 338920446.

It is an arithmetic number, because the mean of its divisors is an integer number (3050283753).

Almost surely, 2^20335224990 is an apocalyptic number.

20335224990 is an abundant number, since it is smaller than the sum of its proper divisors (28469315058).

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

20335224990 is a wasteful number, since it uses less digits than its factorization.

20335224990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677840843.

The product of its (nonzero) digits is 116640, while the sum is 39.

The spelling of 20335224990 in words is "twenty billion, three hundred thirty-five million, two hundred twenty-four thousand, nine hundred ninety".