15500428142 has 8 divisors (see below), whose sum is σ = 23404620432. Its totient is φ = 7698888000.

The previous prime is 15500428127. The next prime is 15500428159. The reversal of 15500428142 is 24182400551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 15500428099 and 15500428108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25662659 + ... + 25663262.

It is an arithmetic number, because the mean of its divisors is an integer number (2925577554).

Almost surely, 2^15500428142 is an apocalyptic number.

15500428142 is a deficient number, since it is larger than the sum of its proper divisors (7904192290).

15500428142 is a wasteful number, since it uses less digits than its factorization.

15500428142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51326074.

The product of its (nonzero) digits is 12800, while the sum is 32.

Adding to 15500428142 its reverse (24182400551), we get a palindrome (39682828693).

The spelling of 15500428142 in words is "fifteen billion, five hundred million, four hundred twenty-eight thousand, one hundred forty-two".