11835540065 has 16 divisors (see below), whose sum is σ = 14805974016. Its totient is φ = 9072264000.

The previous prime is 11835540053. The next prime is 11835540091. The reversal of 11835540065 is 56004553811.

It is a de Polignac number, because none of the positive numbers 2^k-11835540065 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362357 + ... + 393666.

It is an arithmetic number, because the mean of its divisors is an integer number (925373376).

Almost surely, 2^11835540065 is an apocalyptic number.

It is an amenable number.

11835540065 is a deficient number, since it is larger than the sum of its proper divisors (2970433951).

11835540065 is a wasteful number, since it uses less digits than its factorization.

11835540065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756160.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 11835540065 in words is "eleven billion, eight hundred thirty-five million, five hundred forty thousand, sixty-five".