11432540065 has 32 divisors (see below), whose sum is σ = 14943191040. Its totient is φ = 8364772800.

The previous prime is 11432540033. The next prime is 11432540071. The reversal of 11432540065 is 56004523411.

It is a happy number.

It is not a de Polignac number, because 11432540065 - 2⁵ = 11432540033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1264792 + ... + 1273798.

It is an arithmetic number, because the mean of its divisors is an integer number (466974720).

Almost surely, 2^11432540065 is an apocalyptic number.

It is an amenable number.

11432540065 is a deficient number, since it is larger than the sum of its proper divisors (3510650975).

11432540065 is a wasteful number, since it uses less digits than its factorization.

11432540065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9493.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 11432540065 in words is "eleven billion, four hundred thirty-two million, five hundred forty thousand, sixty-five".