10402450065 has 96 divisors (see below), whose sum is σ = 20813884416. Its totient is φ = 4707901440.

The previous prime is 10402450061. The next prime is 10402450081. The reversal of 10402450065 is 56005420401.

It is not a de Polignac number, because 10402450065 - 2² = 10402450061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10402450061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 24135400 + ... + 24135830.

It is an arithmetic number, because the mean of its divisors is an integer number (216811296).

Almost surely, 2^10402450065 is an apocalyptic number.

10402450065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10402450065 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

10402450065 is a wasteful number, since it uses less digits than its factorization.

10402450065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 1036 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 10402450065 its reverse (56005420401), we get a palindrome (66407870466).

The spelling of 10402450065 in words is "ten billion, four hundred two million, four hundred fifty thousand, sixty-five".