15662660943 has 8 divisors (see below), whose sum is σ = 20884126000. Its totient is φ = 10441484928.

The previous prime is 15662660941. The next prime is 15662661037. The reversal of 15662660943 is 34906626651.

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 15662660943 - 2¹ = 15662660941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15662660892 and 15662660901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15662660941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178233 + ... + 251181.

It is an arithmetic number, because the mean of its divisors is an integer number (2610515750).

Almost surely, 2^15662660943 is an apocalyptic number.

15662660943 is a deficient number, since it is larger than the sum of its proper divisors (5221465057).

15662660943 is an equidigital number, since it uses as much as digits as its factorization.

15662660943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144521.

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 15662660943 in words is "fifteen billion, six hundred sixty-two million, six hundred sixty thousand, nine hundred forty-three".