998496565504 has 135 divisors (see below), whose sum is σ = 2116050378113. Its totient is φ = 470238114816.

The previous prime is 998496565501. The next prime is 998496565511. The reversal of 998496565504 is 405565694899.

The square root of 998496565504 is 999248.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 908285241600 + 90211323904 = 953040^2 + 300352^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998496565501) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 5771656362 + ... + 5771656534.

Almost surely, 2^998496565504 is an apocalyptic number.

998496565504 is the 999248-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998496565504

998496565504 is an abundant number, since it is smaller than the sum of its proper divisors (1117553812609).

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

998496565504 is an frugal number, since it uses more digits than its factorization.

998496565504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 419904000, while the sum is 70.

The spelling of 998496565504 in words is "nine hundred ninety-eight billion, four hundred ninety-six million, five hundred sixty-five thousand, five hundred four".