99990006664 has 16 divisors (see below), whose sum is σ = 187495963920. Its totient is φ = 49991082960.

The previous prime is 99990006643. The next prime is 99990006671. The reversal of 99990006664 is 46660009999.

It is a junction number, because it is equal to n+sod(n) for n = 99990006599 and 99990006608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380202 + ... + 586969.

It is an arithmetic number, because the mean of its divisors is an integer number (11718497745).

Almost surely, 2^99990006664 is an apocalyptic number.

It is an amenable number.

99990006664 is a deficient number, since it is larger than the sum of its proper divisors (87505957256).

99990006664 is a wasteful number, since it uses less digits than its factorization.

99990006664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980100 (or 980096 counting only the distinct ones).

The product of its (nonzero) digits is 5668704, while the sum is 58.

The spelling of 99990006664 in words is "ninety-nine billion, nine hundred ninety million, six thousand, six hundred sixty-four".