20623053040 has 80 divisors (see below), whose sum is σ = 51758740800. Its totient is φ = 7618451456.

The previous prime is 20623053037. The next prime is 20623053049. The reversal of 20623053040 is 4035032602.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 20623052996 and 20623053014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20623053049) 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 15 ways as a sum of consecutive naturals, for example, 139885 + ... + 246604.

It is an arithmetic number, because the mean of its divisors is an integer number (646984260).

Almost surely, 2^20623053040 is an apocalyptic number.

20623053040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20623053040 is an abundant number, since it is smaller than the sum of its proper divisors (31135687760).

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

20623053040 is a wasteful number, since it uses less digits than its factorization.

20623053040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386554 (or 386548 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 20623053040 its reverse (4035032602), we get a palindrome (24658085642).

The spelling of 20623053040 in words is "twenty billion, six hundred twenty-three million, fifty-three thousand, forty".