9980977552 has 160 divisors (see below), whose sum is σ = 25376153600. Its totient is φ = 3692542464.

The previous prime is 9980977547. The next prime is 9980977553. The reversal of 9980977552 is 2557790899.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (9980977553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2183173 + ... + 2187739.

It is an arithmetic number, because the mean of its divisors is an integer number (158600960).

Almost surely, 2^9980977552 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 9980977552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12688076800).

9980977552 is an abundant number, since it is smaller than the sum of its proper divisors (15395176048).

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

9980977552 is a wasteful number, since it uses less digits than its factorization.

9980977552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693 (or 4687 counting only the distinct ones).

The product of its (nonzero) digits is 14288400, while the sum is 61.

The square root of 9980977552 is about 99904.8424852369. The cubic root of 9980977552 is about 2153.0677355091.

The spelling of 9980977552 in words is "nine billion, nine hundred eighty million, nine hundred seventy-seven thousand, five hundred fifty-two".