15660000651 has 8 divisors (see below), whose sum is σ = 21191642944. Its totient is φ = 10284179400.

The previous prime is 15660000647. The next prime is 15660000749. The reversal of 15660000651 is 15600006651.

15660000651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 15660000651 - 2² = 15660000647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15660000751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38955025 + ... + 38955426.

It is an arithmetic number, because the mean of its divisors is an integer number (2648955368).

Almost surely, 2^15660000651 is an apocalyptic number.

15660000651 is a deficient number, since it is larger than the sum of its proper divisors (5531642293).

15660000651 is an equidigital number, since it uses as much as digits as its factorization.

15660000651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77910521.

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 15660000651 in words is "fifteen billion, six hundred sixty million, six hundred fifty-one", and thus it is an aban number.