15556341243 has 8 divisors (see below), whose sum is σ = 20932080400. Its totient is φ = 10275748128.

The previous prime is 15556341233. The next prime is 15556341301. The reversal of 15556341243 is 34214365551.

It is a happy number.

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

It is not a de Polignac number, because 15556341243 - 2²⁰ = 15555292667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15556341233) 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, 23786128 + ... + 23786781.

It is an arithmetic number, because the mean of its divisors is an integer number (2616510050).

Almost surely, 2^15556341243 is an apocalyptic number.

15556341243 is a deficient number, since it is larger than the sum of its proper divisors (5375739157).

15556341243 is a wasteful number, since it uses less digits than its factorization.

15556341243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47573021.

The product of its digits is 216000, while the sum is 39.

The spelling of 15556341243 in words is "fifteen billion, five hundred fifty-six million, three hundred forty-one thousand, two hundred forty-three".