11597921898120 has 192 divisors, whose sum is σ = 38228879520000. Its totient is φ = 3048872555520.

The previous prime is 11597921898103. The next prime is 11597921898161. The reversal of 11597921898120 is 2189812979511.

11597921898120 is a `hidden beast` number, since 1 + 1 + 597 + 9 + 2 + 18 + 9 + 8 + 1 + 20 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52423335 + ... + 52644105.

It is an arithmetic number, because the mean of its divisors is an integer number (199108747500).

Almost surely, 2^{11597921898120} is an apocalyptic number.

11597921898120 is a gapful number since it is divisible by the number (10) 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 11597921898120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19114439760000).

11597921898120 is an abundant number, since it is smaller than the sum of its proper divisors (26630957621880).

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

11597921898120 is a wasteful number, since it uses less digits than its factorization.

11597921898120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222860 (or 222853 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 63.

The spelling of 11597921898120 in words is "eleven trillion, five hundred ninety-seven billion, nine hundred twenty-one million, eight hundred ninety-eight thousand, one hundred twenty".