12501550001436 has 48 divisors (see below), whose sum is σ = 30176478460800. Its totient is φ = 4023444252352.

The previous prime is 12501550001399. The next prime is 12501550001471. The reversal of 12501550001436 is 63410005510521.

It is a junction number, because it is equal to n+sod(n) for n = 12501550001397 and 12501550001406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55281451 + ... + 55507133.

It is an arithmetic number, because the mean of its divisors is an integer number (628676634600).

Almost surely, 2^{12501550001436} is an apocalyptic number.

It is an amenable number.

12501550001436 is an abundant number, since it is smaller than the sum of its proper divisors (17674928459364).

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

12501550001436 is a wasteful number, since it uses less digits than its factorization.

12501550001436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384898 (or 384896 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 12501550001436 its reverse (63410005510521), we get a palindrome (75911555511957).

The spelling of 12501550001436 in words is "twelve trillion, five hundred one billion, five hundred fifty million, one thousand, four hundred thirty-six".