20352661653020 has 96 divisors (see below), whose sum is σ = 46979066534400. Its totient is φ = 7372090623744.

The previous prime is 20352661652929. The next prime is 20352661653047. The reversal of 20352661653020 is 2035616625302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11674667 + ... + 13304253.

It is an arithmetic number, because the mean of its divisors is an integer number (489365276400).

Almost surely, 2^{20352661653020} is an apocalyptic number.

20352661653020 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 20352661653020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23489533267200).

20352661653020 is an abundant number, since it is smaller than the sum of its proper divisors (26626404881380).

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

20352661653020 is a wasteful number, since it uses less digits than its factorization.

20352661653020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631067 (or 1631065 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 20352661653020 in words is "twenty trillion, three hundred fifty-two billion, six hundred sixty-one million, six hundred fifty-three thousand, twenty".