109131601138560 has 3840 divisors, whose sum is σ = 539499981081600. Its totient is φ = 20661934325760.

The previous prime is 109131601138531. The next prime is 109131601138577. The reversal of 109131601138560 is 65831106131901.

109131601138560 is a `hidden beast` number, since 1 + 0 + 9 + 1 + 3 + 1 + 601 + 1 + 38 + 5 + 6 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

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 479 ways as a sum of consecutive naturals, for example, 28696185619 + ... + 28696189421.

It is an arithmetic number, because the mean of its divisors is an integer number (140494786740).

Almost surely, 2^{109131601138560} is an apocalyptic number.

109131601138560 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 109131601138560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269749990540800).

109131601138560 is an abundant number, since it is smaller than the sum of its proper divisors (430368379943040).

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

109131601138560 is a wasteful number, since it uses less digits than its factorization.

109131601138560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3951 (or 3923 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The spelling of 109131601138560 in words is "one hundred nine trillion, one hundred thirty-one billion, six hundred one million, one hundred thirty-eight thousand, five hundred sixty".