20852184860980 has 48 divisors (see below), whose sum is σ = 47858760432000. Its totient is φ = 7568596713600.

The previous prime is 20852184860963. The next prime is 20852184860989. The reversal of 20852184860980 is 8906848125802.

It is a super-2 number, since 2×20852184860980² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20852184860989) 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, 87480480 + ... + 87718519.

It is an arithmetic number, because the mean of its divisors is an integer number (997057509000).

Almost surely, 2^{20852184860980} is an apocalyptic number.

20852184860980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20852184860980 is an abundant number, since it is smaller than the sum of its proper divisors (27006575571020).

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

20852184860980 is a wasteful number, since it uses less digits than its factorization.

20852184860980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175199560 (or 175199558 counting only the distinct ones).

The product of its (nonzero) digits is 17694720, while the sum is 61.

The spelling of 20852184860980 in words is "twenty trillion, eight hundred fifty-two billion, one hundred eighty-four million, eight hundred sixty thousand, nine hundred eighty".