9902160420 has 24 divisors (see below), whose sum is σ = 27726049344. Its totient is φ = 2640576096.

The previous prime is 9902160419. The next prime is 9902160421. The reversal of 9902160420 is 240612099.

9902160420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9902160419) and next prime (9902160421).

It is not an unprimeable number, because it can be changed into a prime (9902160421) 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 7 ways as a sum of consecutive naturals, for example, 82517944 + ... + 82518063.

It is an arithmetic number, because the mean of its divisors is an integer number (1155252056).

Almost surely, 2^9902160420 is an apocalyptic number.

It is an amenable number.

9902160420 is an abundant number, since it is smaller than the sum of its proper divisors (17823888924).

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

9902160420 is a wasteful number, since it uses less digits than its factorization.

9902160420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165036019 (or 165036017 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 9902160420 is about 99509.5996374219. The cubic root of 9902160420 is about 2147.3853501449.

The spelling of 9902160420 in words is "nine billion, nine hundred two million, one hundred sixty thousand, four hundred twenty".