115800105400 has 96 divisors (see below), whose sum is σ = 312031457280. Its totient is φ = 39143664000.

The previous prime is 115800105367. The next prime is 115800105403. The reversal of 115800105400 is 4501008511.

It is a happy number.

It is a super-2 number, since 2×115800105400² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115800105403) 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, 483096 + ... + 681895.

It is an arithmetic number, because the mean of its divisors is an integer number (3250327680).

Almost surely, 2^115800105400 is an apocalyptic number.

115800105400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115800105400 is an abundant number, since it is smaller than the sum of its proper divisors (196231351880).

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

115800105400 is a wasteful number, since it uses less digits than its factorization.

115800105400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165085 (or 1165076 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 25.

The spelling of 115800105400 in words is "one hundred fifteen billion, eight hundred million, one hundred five thousand, four hundred".