15660217006 has 8 divisors (see below), whose sum is σ = 26846086320. Its totient is φ = 6711521568.

The previous prime is 15660217003. The next prime is 15660217019. The reversal of 15660217006 is 60071206651.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15660217003) 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, 559293451 + ... + 559293478.

It is an arithmetic number, because the mean of its divisors is an integer number (3355760790).

Almost surely, 2^15660217006 is an apocalyptic number.

15660217006 is a deficient number, since it is larger than the sum of its proper divisors (11185869314).

15660217006 is a wasteful number, since it uses less digits than its factorization.

15660217006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118586938.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 15660217006 in words is "fifteen billion, six hundred sixty million, two hundred seventeen thousand, six".