998216470608 has 40 divisors (see below), whose sum is σ = 2947115295168. Its totient is φ = 285204705792.

The previous prime is 998216470567. The next prime is 998216470627. The reversal of 998216470608 is 806074612899.

It is a super-2 number, since 2×998216470608² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1485440841 + ... + 1485441512.

Almost surely, 2^998216470608 is an apocalyptic number.

It is an amenable number.

998216470608 is an abundant number, since it is smaller than the sum of its proper divisors (1948898824560).

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

998216470608 is a wasteful number, since it uses less digits than its factorization.

998216470608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2970882371 (or 2970882365 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 998216470608 in words is "nine hundred ninety-eight billion, two hundred sixteen million, four hundred seventy thousand, six hundred eight".