99218417198 has 16 divisors (see below), whose sum is σ = 156251154816. Its totient is φ = 47161164600.

The previous prime is 99218417197. The next prime is 99218417203. The reversal of 99218417198 is 89171481299.

It is a super-2 number, since 2×99218417198² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99218417197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6608828 + ... + 6623823.

It is an arithmetic number, because the mean of its divisors is an integer number (9765697176).

Almost surely, 2^99218417198 is an apocalyptic number.

99218417198 is a deficient number, since it is larger than the sum of its proper divisors (57032737618).

99218417198 is a wasteful number, since it uses less digits than its factorization.

99218417198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13232839.

The product of its digits is 2612736, while the sum is 59.

The spelling of 99218417198 in words is "ninety-nine billion, two hundred eighteen million, four hundred seventeen thousand, one hundred ninety-eight".