9977660084420 has 96 divisors (see below), whose sum is σ = 24102289639680. Its totient is φ = 3398645952000.

The previous prime is 9977660084419. The next prime is 9977660084467. The reversal of 9977660084420 is 244800667799.

It is a super-3 number, since 3×9977660084420³ (a number of 40 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179746670 + ... + 179802170.

It is an arithmetic number, because the mean of its divisors is an integer number (251065517080).

Almost surely, 2^{9977660084420} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9977660084420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12051144819840).

9977660084420 is an abundant number, since it is smaller than the sum of its proper divisors (14124629555260).

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

9977660084420 is a wasteful number, since it uses less digits than its factorization.

9977660084420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63853 (or 63851 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 62.

The spelling of 9977660084420 in words is "nine trillion, nine hundred seventy-seven billion, six hundred sixty million, eighty-four thousand, four hundred twenty".