11816605323587 has 8 divisors (see below), whose sum is σ = 11837589515856. Its totient is φ = 11795627062912.

The previous prime is 11816605323571. The next prime is 11816605323629. The reversal of 11816605323587 is 78532350661811.

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 11816605323587 - 2⁴ = 11816605323571 is a prime.

It is a super-2 number, since 2×11816605323587² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11816605323547) 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, 2514488 + ... + 5473194.

It is an arithmetic number, because the mean of its divisors is an integer number (1479698689482).

Almost surely, 2^{11816605323587} is an apocalyptic number.

11816605323587 is a deficient number, since it is larger than the sum of its proper divisors (20984192269).

11816605323587 is an equidigital number, since it uses as much as digits as its factorization.

11816605323587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2965797.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 11816605323587 in words is "eleven trillion, eight hundred sixteen billion, six hundred five million, three hundred twenty-three thousand, five hundred eighty-seven".