11998196352 has 192 divisors, whose sum is σ = 37738172160. Its totient is φ = 3642531840.

The previous prime is 11998196347. The next prime is 11998196359. The reversal of 11998196352 is 25369189911.

11998196352 is a `hidden beast` number, since 1 + 19 + 98 + 196 + 352 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×11998196352² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11998196359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 597223 + ... + 616985.

It is an arithmetic number, because the mean of its divisors is an integer number (196552980).

Almost surely, 2^11998196352 is an apocalyptic number.

11998196352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11998196352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18869086080).

11998196352 is an abundant number, since it is smaller than the sum of its proper divisors (25739975808).

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

11998196352 is a wasteful number, since it uses less digits than its factorization.

11998196352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19831 (or 19816 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 54.

The spelling of 11998196352 in words is "eleven billion, nine hundred ninety-eight million, one hundred ninety-six thousand, three hundred fifty-two".