9977663320 has 16 divisors (see below), whose sum is σ = 22449742560. Its totient is φ = 3991065312.

The previous prime is 9977663291. The next prime is 9977663321. The reversal of 9977663320 is 233667799.

9977663320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9977663321) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 124720752 + ... + 124720831.

It is an arithmetic number, because the mean of its divisors is an integer number (1403108910).

Almost surely, 2^9977663320 is an apocalyptic number.

It is an amenable number.

9977663320 is an abundant number, since it is smaller than the sum of its proper divisors (12472079240).

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

9977663320 is a wasteful number, since it uses less digits than its factorization.

9977663320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249441594 (or 249441590 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 52.

The square root of 9977663320 is about 99888.2541643411. The cubic root of 9977663320 is about 2152.8293969323.

The spelling of 9977663320 in words is "nine billion, nine hundred seventy-seven million, six hundred sixty-three thousand, three hundred twenty".