15601531343 has 4 divisors (see below), whose sum is σ = 15601977120. Its totient is φ = 15601085568.

The previous prime is 15601531321. The next prime is 15601531369. The reversal of 15601531343 is 34313510651.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15601531343 - 2⁸ = 15601531087 is a prime.

It is a super-2 number, since 2×15601531343² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15601531303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165458 + ... + 242031.

It is an arithmetic number, because the mean of its divisors is an integer number (3900494280).

Almost surely, 2^15601531343 is an apocalyptic number.

15601531343 is a deficient number, since it is larger than the sum of its proper divisors (445777).

15601531343 is an equidigital number, since it uses as much as digits as its factorization.

15601531343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445776.

The product of its (nonzero) digits is 16200, while the sum is 32.

The spelling of 15601531343 in words is "fifteen billion, six hundred one million, five hundred thirty-one thousand, three hundred forty-three".