10140240221665 has 8 divisors (see below), whose sum is σ = 12186697178088. Its totient is φ = 8099919569280.

The previous prime is 10140240221663. The next prime is 10140240221669. The reversal of 10140240221665 is 56612204204101.

It can be written as a sum of positive squares in 4 ways, for example, as 3559984051264 + 6580256170401 = 1886792^2 + 2565201^2 .

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

It is not a de Polignac number, because 10140240221665 - 2¹ = 10140240221663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10140240221665.

It is not an unprimeable number, because it can be changed into a prime (10140240221663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1534072372 + ... + 1534078981.

It is an arithmetic number, because the mean of its divisors is an integer number (1523337147261).

Almost surely, 2^{10140240221665} is an apocalyptic number.

It is an amenable number.

10140240221665 is a deficient number, since it is larger than the sum of its proper divisors (2046456956423).

10140240221665 is an equidigital number, since it uses as much as digits as its factorization.

10140240221665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3068152019.

The product of its (nonzero) digits is 23040, while the sum is 34.

Adding to 10140240221665 its reverse (56612204204101), we get a palindrome (66752444425766).

The spelling of 10140240221665 in words is "ten trillion, one hundred forty billion, two hundred forty million, two hundred twenty-one thousand, six hundred sixty-five".