113255321678550 has 192 divisors, whose sum is σ = 322892547393600. Its totient is φ = 29155493606400.

The previous prime is 113255321678519. The next prime is 113255321678647. The reversal of 113255321678550 is 55876123552311.

113255321678550 is a `hidden beast` number, since 1 + 1 + 3 + 2 + 5 + 5 + 3 + 2 + 16 + 78 + 550 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 257426362 + ... + 257865938.

It is an arithmetic number, because the mean of its divisors is an integer number (1681732017675).

Almost surely, 2^{113255321678550} is an apocalyptic number.

113255321678550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 113255321678550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161446273696800).

113255321678550 is an abundant number, since it is smaller than the sum of its proper divisors (209637225715050).

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

113255321678550 is a wasteful number, since it uses less digits than its factorization.

113255321678550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446208 (or 446197 counting only the distinct ones).

The product of its (nonzero) digits is 7560000, while the sum is 54.

The spelling of 113255321678550 in words is "one hundred thirteen trillion, two hundred fifty-five billion, three hundred twenty-one million, six hundred seventy-eight thousand, five hundred fifty".