990000000065 has 32 divisors (see below), whose sum is σ = 1221267269376. Its totient is φ = 769962941440.

The previous prime is 990000000061. The next prime is 990000000089. The reversal of 990000000065 is 560000000099.

It is not a de Polignac number, because 990000000065 - 2² = 990000000061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 989999999965 and 990000000037.

It is not an unprimeable number, because it can be changed into a prime (990000000061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70420517 + ... + 70434573.

It is an arithmetic number, because the mean of its divisors is an integer number (38164602168).

Almost surely, 2^990000000065 is an apocalyptic number.

It is an amenable number.

990000000065 is a deficient number, since it is larger than the sum of its proper divisors (231267269311).

990000000065 is a wasteful number, since it uses less digits than its factorization.

990000000065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15289.

The product of its (nonzero) digits is 2430, while the sum is 29.

The spelling of 990000000065 in words is "nine hundred ninety billion, sixty-five", and thus it is an aban number.