995666679 has 48 divisors (see below), whose sum is σ = 1666689024. Its totient is φ = 561038400.

The previous prime is 995666663. The next prime is 995666687. The reversal of 995666679 is 976666599.

It is not a de Polignac number, because 995666679 - 2⁴ = 995666663 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (995666689) 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 47 ways as a sum of consecutive naturals, for example, 1840149 + ... + 1840689.

It is an arithmetic number, because the mean of its divisors is an integer number (34722688).

Almost surely, 2^995666679 is an apocalyptic number.

995666679 is a deficient number, since it is larger than the sum of its proper divisors (671022345).

995666679 is a wasteful number, since it uses less digits than its factorization.

995666679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908 (or 905 counting only the distinct ones).

The product of its digits is 33067440, while the sum is 63.

The square root of 995666679 is about 31554.1863942013. The cubic root of 995666679 is about 998.5534682214.

The spelling of 995666679 in words is "nine hundred ninety-five million, six hundred sixty-six thousand, six hundred seventy-nine".