11702730565661 has 32 divisors (see below), whose sum is σ = 12196803806208. Its totient is φ = 11219460658560.

The previous prime is 11702730565639. The next prime is 11702730565679. The reversal of 11702730565661 is 16656503720711.

It is a cyclic number.

It is not a de Polignac number, because 11702730565661 - 2³⁰ = 11701656823837 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 (11702730565861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2444687510 + ... + 2444692296.

It is an arithmetic number, because the mean of its divisors is an integer number (381150118944).

Almost surely, 2^{11702730565661} is an apocalyptic number.

It is an amenable number.

11702730565661 is a deficient number, since it is larger than the sum of its proper divisors (494073240547).

11702730565661 is a wasteful number, since it uses less digits than its factorization.

11702730565661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6881.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The spelling of 11702730565661 in words is "eleven trillion, seven hundred two billion, seven hundred thirty million, five hundred sixty-five thousand, six hundred sixty-one".