10000165990 has 32 divisors (see below), whose sum is σ = 18718594560. Its totient is φ = 3841891200.

The previous prime is 10000165951. The next prime is 10000165991. The reversal of 10000165990 is 9956100001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000165991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34881 + ... + 145660.

It is an arithmetic number, because the mean of its divisors is an integer number (584956080).

Almost surely, 2^10000165990 is an apocalyptic number.

10000165990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10000165990 is a deficient number, since it is larger than the sum of its proper divisors (8718428570).

10000165990 is a wasteful number, since it uses less digits than its factorization.

10000165990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180768.

The product of its (nonzero) digits is 2430, while the sum is 31.

Adding to 10000165990 its reverse (9956100001), we get a palindrome (19956265991).

The spelling of 10000165990 in words is "ten billion, one hundred sixty-five thousand, nine hundred ninety".