9898161696 has 72 divisors (see below), whose sum is σ = 28159971840. Its totient is φ = 3297972096.

The previous prime is 9898161667. The next prime is 9898161737. The reversal of 9898161696 is 6961618989.

9898161696 is a `hidden beast` number, since 9 + 8 + 9 + 8 + 1 + 616 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 830145 + ... + 841983.

It is an arithmetic number, because the mean of its divisors is an integer number (391110720).

Almost surely, 2^9898161696 is an apocalyptic number.

9898161696 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

9898161696 is an abundant number, since it is smaller than the sum of its proper divisors (18261810144).

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

9898161696 is a wasteful number, since it uses less digits than its factorization.

9898161696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14758 (or 14747 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 63.

The square root of 9898161696 is about 99489.5054566058. The cubic root of 9898161696 is about 2147.0962564158.

The spelling of 9898161696 in words is "nine billion, eight hundred ninety-eight million, one hundred sixty-one thousand, six hundred ninety-six".