15500428143 has 8 divisors (see below), whose sum is σ = 21171316656. Its totient is φ = 10081579200.

The previous prime is 15500428127. The next prime is 15500428159. The reversal of 15500428143 is 34182400551.

It is an interprime number because it is at equal distance from previous prime (15500428127) and next prime (15500428159).

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

It is not a de Polignac number, because 15500428143 - 2⁴ = 15500428127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15500428123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63009748 + ... + 63009993.

It is an arithmetic number, because the mean of its divisors is an integer number (2646414582).

Almost surely, 2^15500428143 is an apocalyptic number.

15500428143 is a deficient number, since it is larger than the sum of its proper divisors (5670888513).

15500428143 is a wasteful number, since it uses less digits than its factorization.

15500428143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126019785.

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 15500428143 its reverse (34182400551), we get a palindrome (49682828694).

The spelling of 15500428143 in words is "fifteen billion, five hundred million, four hundred twenty-eight thousand, one hundred forty-three".