20605061048 has 64 divisors (see below), whose sum is σ = 45813237120. Its totient is φ = 8564630400.

The previous prime is 20605061047. The next prime is 20605061051. The reversal of 20605061048 is 84016050602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20605061047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38243 + ... + 206573.

It is an arithmetic number, because the mean of its divisors is an integer number (715831830).

Almost surely, 2^20605061048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20605061048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22906618560).

20605061048 is an abundant number, since it is smaller than the sum of its proper divisors (25208176072).

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

20605061048 is a wasteful number, since it uses less digits than its factorization.

20605061048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168468 (or 168464 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 20605061048 in words is "twenty billion, six hundred five million, sixty-one thousand, forty-eight".