104104552520 has 64 divisors (see below), whose sum is σ = 239470726320. Its totient is φ = 40716442624.

The previous prime is 104104552477. The next prime is 104104552523. The reversal of 104104552520 is 25255401401.

It can be written as a sum of positive squares in 8 ways, for example, as 68592657604 + 35511894916 = 261902^2 + 188446^2 .

It is not an unprimeable number, because it can be changed into a prime (104104552523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537362 + ... + 704958.

Almost surely, 2^104104552520 is an apocalyptic number.

104104552520 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 104104552520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119735363160).

104104552520 is an abundant number, since it is smaller than the sum of its proper divisors (135366173800).

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

104104552520 is a wasteful number, since it uses less digits than its factorization.

104104552520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167954 (or 167950 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 104104552520 its reverse (25255401401), we get a palindrome (129359953921).

The spelling of 104104552520 in words is "one hundred four billion, one hundred four million, five hundred fifty-two thousand, five hundred twenty".