998165632 has 32 divisors (see below), whose sum is σ = 2013724800. Its totient is φ = 492760320.

The previous prime is 998165593. The next prime is 998165633. The reversal of 998165632 is 236561899.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (998165633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39244 + ... + 59467.

It is an arithmetic number, because the mean of its divisors is an integer number (62928900).

Almost surely, 2^998165632 is an apocalyptic number.

It is an amenable number.

998165632 is an abundant number, since it is smaller than the sum of its proper divisors (1015559168).

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

998165632 is an equidigital number, since it uses as much as digits as its factorization.

998165632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98804 (or 98792 counting only the distinct ones).

The product of its digits is 699840, while the sum is 49.

The square root of 998165632 is about 31593.7593837770. The cubic root of 998165632 is about 999.3881697401.

The spelling of 998165632 in words is "nine hundred ninety-eight million, one hundred sixty-five thousand, six hundred thirty-two".