20653069873040 has 160 divisors (see below), whose sum is σ = 55514789576064. Its totient is φ = 7062096568320.

The previous prime is 20653069873039. The next prime is 20653069873043. The reversal of 20653069873040 is 4037896035602.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20653069873043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16092347 + ... + 17328293.

Almost surely, 2^{20653069873040} is an apocalyptic number.

20653069873040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20653069873040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27757394788032).

20653069873040 is an abundant number, since it is smaller than the sum of its proper divisors (34861719703024).

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

20653069873040 is a wasteful number, since it uses less digits than its factorization.

20653069873040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237105 (or 1237099 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 20653069873040 in words is "twenty trillion, six hundred fifty-three billion, sixty-nine million, eight hundred seventy-three thousand, forty".