11655612120505 has 8 divisors (see below), whose sum is σ = 14018594990400. Its totient is φ = 9303249399216.

The previous prime is 11655612120463. The next prime is 11655612120517. The reversal of 11655612120505 is 50502121655611.

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 11655612120505 - 2⁴¹ = 9456588864953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2655034735 + ... + 2655039124.

It is an arithmetic number, because the mean of its divisors is an integer number (1752324373800).

Almost surely, 2^{11655612120505} is an apocalyptic number.

It is an amenable number.

11655612120505 is a deficient number, since it is larger than the sum of its proper divisors (2362982869895).

11655612120505 is an equidigital number, since it uses as much as digits as its factorization.

11655612120505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5310074303.

The product of its (nonzero) digits is 90000, while the sum is 40.

The spelling of 11655612120505 in words is "eleven trillion, six hundred fifty-five billion, six hundred twelve million, one hundred twenty thousand, five hundred five".