11161565501506 has 8 divisors (see below), whose sum is σ = 19134112288320. Its totient is φ = 4783528072068.

The previous prime is 11161565501413. The next prime is 11161565501507. The reversal of 11161565501506 is 60510556516111.

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

It is not an unprimeable number, because it can be changed into a prime (11161565501507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398627339326 + ... + 398627339353.

It is an arithmetic number, because the mean of its divisors is an integer number (2391764036040).

Almost surely, 2^{11161565501506} is an apocalyptic number.

11161565501506 is a deficient number, since it is larger than the sum of its proper divisors (7972546786814).

11161565501506 is an equidigital number, since it uses as much as digits as its factorization.

11161565501506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797254678688.

The product of its (nonzero) digits is 135000, while the sum is 43.

The spelling of 11161565501506 in words is "eleven trillion, one hundred sixty-one billion, five hundred sixty-five million, five hundred one thousand, five hundred six".