20590681044 has 48 divisors (see below), whose sum is σ = 51237144000. Its totient is φ = 6413339136.

The previous prime is 20590681031. The next prime is 20590681049. The reversal of 20590681044 is 44018609502.

It is a super-2 number, since 2×20590681044² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20590680993 and 20590681011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20590681049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334719 + ... + 391430.

It is an arithmetic number, because the mean of its divisors is an integer number (1067440500).

Almost surely, 2^20590681044 is an apocalyptic number.

It is an amenable number.

20590681044 is an abundant number, since it is smaller than the sum of its proper divisors (30646462956).

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

20590681044 is a wasteful number, since it uses less digits than its factorization.

20590681044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726312 (or 726310 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 20590681044 in words is "twenty billion, five hundred ninety million, six hundred eighty-one thousand, forty-four".