20581941740 has 24 divisors (see below), whose sum is σ = 43286328960. Its totient is φ = 8220538368.

The previous prime is 20581941689. The next prime is 20581941761. The reversal of 20581941740 is 4714918502.

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, 751100 + ... + 778019.

It is an arithmetic number, because the mean of its divisors is an integer number (1803597040).

Almost surely, 2^20581941740 is an apocalyptic number.

20581941740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20581941740 is an abundant number, since it is smaller than the sum of its proper divisors (22704387220).

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

20581941740 is a wasteful number, since it uses less digits than its factorization.

20581941740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529801 (or 1529799 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 20581941740 in words is "twenty billion, five hundred eighty-one million, nine hundred forty-one thousand, seven hundred forty".