100104445512 has 80 divisors (see below), whose sum is σ = 280815703740. Its totient is φ = 33316907904.

The previous prime is 100104445489. The next prime is 100104445517. The reversal of 100104445512 is 215544401001.

100104445512 is a `hidden beast` number, since 1 + 0 + 0 + 104 + 4 + 4 + 551 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 96936331716 + 3168113796 = 311346^2 + 56286^2 .

It is a super-2 number, since 2×100104445512² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (100104445517) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 304858 + ... + 541430.

Almost surely, 2^100104445512 is an apocalyptic number.

100104445512 is a gapful number since it is divisible by the number (12) 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 100104445512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140407851870).

100104445512 is an abundant number, since it is smaller than the sum of its proper divisors (180711258228).

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

100104445512 is a wasteful number, since it uses less digits than its factorization.

100104445512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237244 (or 237231 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 100104445512 its reverse (215544401001), we get a palindrome (315648846513).

The spelling of 100104445512 in words is "one hundred billion, one hundred four million, four hundred forty-five thousand, five hundred twelve".