20977446202482 has 192 divisors, whose sum is σ = 53468444113920. Its totient is φ = 5330319331200.

The previous prime is 20977446202481. The next prime is 20977446202547. The reversal of 20977446202482 is 28420264477902.

It is not an unprimeable number, because it can be changed into a prime (20977446202481) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3532148269 + ... + 3532154207.

It is an arithmetic number, because the mean of its divisors is an integer number (278481479760).

Almost surely, 2^{20977446202482} is an apocalyptic number.

20977446202482 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20977446202482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26734222056960).

20977446202482 is an abundant number, since it is smaller than the sum of its proper divisors (32490997911438).

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

20977446202482 is a wasteful number, since it uses less digits than its factorization.

20977446202482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9517 (or 9470 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 57.

The spelling of 20977446202482 in words is "twenty trillion, nine hundred seventy-seven billion, four hundred forty-six million, two hundred two thousand, four hundred eighty-two".