15436140065 has 8 divisors (see below), whose sum is σ = 18524151360. Its totient is φ = 12348389872.

The previous prime is 15436140023. The next prime is 15436140067. The reversal of 15436140065 is 56004163451.

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

It is a cyclic number.

It is not a de Polignac number, because 15436140065 - 2¹⁰ = 15436139041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15436140067) 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 7 ways as a sum of consecutive naturals, for example, 105332 + ... + 204858.

It is an arithmetic number, because the mean of its divisors is an integer number (2315518920).

Almost surely, 2^15436140065 is an apocalyptic number.

It is an amenable number.

15436140065 is a deficient number, since it is larger than the sum of its proper divisors (3088011295).

15436140065 is an equidigital number, since it uses as much as digits as its factorization.

15436140065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130551.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 15436140065 in words is "fifteen billion, four hundred thirty-six million, one hundred forty thousand, sixty-five".