20530483390980 has 384 divisors, whose sum is σ = 67511359641600. Its totient is φ = 5165313753600.

The previous prime is 20530483390933. The next prime is 20530483390993. The reversal of 20530483390980 is 8909338403502.

It is a happy number.

20530483390980 is a `hidden beast` number, since 2 + 0 + 53 + 0 + 483 + 39 + 0 + 9 + 80 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3711890815 + ... + 3711896345.

It is an arithmetic number, because the mean of its divisors is an integer number (175810832400).

Almost surely, 2^{20530483390980} is an apocalyptic number.

20530483390980 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 20530483390980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33755679820800).

20530483390980 is an abundant number, since it is smaller than the sum of its proper divisors (46980876250620).

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

20530483390980 is a wasteful number, since it uses less digits than its factorization.

20530483390980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6992 (or 6984 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 20530483390980 in words is "twenty trillion, five hundred thirty billion, four hundred eighty-three million, three hundred ninety thousand, nine hundred eighty".