15556200512103 has 12 divisors (see below), whose sum is σ = 23791836077568. Its totient is φ = 9760753262400.

The previous prime is 15556200511987. The next prime is 15556200512159. The reversal of 15556200512103 is 30121500265551.

15556200512103 is a `hidden beast` number, since 1 + 5 + 5 + 5 + 620 + 0 + 5 + 1 + 21 + 0 + 3 = 666.

It is not a de Polignac number, because 15556200512103 - 2³⁴ = 15539020642919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15556200514103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50837256423 + ... + 50837256728.

It is an arithmetic number, because the mean of its divisors is an integer number (1982653006464).

Almost surely, 2^{15556200512103} is an apocalyptic number.

15556200512103 is a deficient number, since it is larger than the sum of its proper divisors (8235635565465).

15556200512103 is a wasteful number, since it uses less digits than its factorization.

15556200512103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101674513174 (or 101674513171 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

Adding to 15556200512103 its reverse (30121500265551), we get a palindrome (45677700777654).

The spelling of 15556200512103 in words is "fifteen trillion, five hundred fifty-six billion, two hundred million, five hundred twelve thousand, one hundred three".