115551041961600 has 1344 divisors, whose sum is σ = 493609170384000. Its totient is φ = 26168954757120.

The previous prime is 115551041961587. The next prime is 115551041961637. The reversal of 115551041961600 is 6169140155511.

115551041961600 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 5 + 10 + 4 + 19 + 616 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a super-2 number, since 2×115551041961600² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 1779893941 + ... + 1779958859.

Almost surely, 2^{115551041961600} is an apocalyptic number.

115551041961600 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 115551041961600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246804585192000).

115551041961600 is an abundant number, since it is smaller than the sum of its proper divisors (378058128422400).

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

115551041961600 is an equidigital number, since it uses as much as digits as its factorization.

115551041961600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65077 (or 65045 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 45.

The spelling of 115551041961600 in words is "one hundred fifteen trillion, five hundred fifty-one billion, forty-one million, nine hundred sixty-one thousand, six hundred".