1165535406013 has 8 divisors (see below), whose sum is σ = 1312509079296. Its totient is φ = 1025397717600.

The previous prime is 1165535405941. The next prime is 1165535406023. The reversal of 1165535406013 is 3106045355611.

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 1165535406013 - 2¹³ = 1165535397821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165535406023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1708995856 + ... + 1708996537.

It is an arithmetic number, because the mean of its divisors is an integer number (164063634912).

Almost surely, 2^{1165535406013} is an apocalyptic number.

It is an amenable number.

1165535406013 is a deficient number, since it is larger than the sum of its proper divisors (146973673283).

1165535406013 is a wasteful number, since it uses less digits than its factorization.

1165535406013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417992435.

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 1165535406013 in words is "one trillion, one hundred sixty-five billion, five hundred thirty-five million, four hundred six thousand, thirteen".