9920350080 has 96 divisors (see below), whose sum is σ = 34256228760. Its totient is φ = 2645425152.

The previous prime is 9920350061. The next prime is 9920350081. The reversal of 9920350080 is 800530299.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9920350081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 855382 + ... + 866901.

Almost surely, 2^9920350080 is an apocalyptic number.

9920350080 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9920350080 is an abundant number, since it is smaller than the sum of its proper divisors (24335878680).

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

9920350080 is a wasteful number, since it uses less digits than its factorization.

9920350080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722308 (or 1722293 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 9920350080 is about 99600.9542122966. The cubic root of 9920350080 is about 2148.6994174818.

It can be divided in two parts, 9920 and 350080, that added together give a square (360000 = 600²).

The spelling of 9920350080 in words is "nine billion, nine hundred twenty million, three hundred fifty thousand, eighty".