11156156655505 has 8 divisors (see below), whose sum is σ = 13393953662400. Its totient is φ = 8920548207216.

The previous prime is 11156156655493. The next prime is 11156156655541. The reversal of 11156156655505 is 50555665165111.

It is a happy number.

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 11156156655505 - 2⁵ = 11156156655473 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, 547128435 + ... + 547148824.

It is an arithmetic number, because the mean of its divisors is an integer number (1674244207800).

Almost surely, 2^{11156156655505} is an apocalyptic number.

It is an amenable number.

11156156655505 is a deficient number, since it is larger than the sum of its proper divisors (2237797006895).

11156156655505 is a wasteful number, since it uses less digits than its factorization.

11156156655505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094279303.

The product of its (nonzero) digits is 3375000, while the sum is 52.

The spelling of 11156156655505 in words is "eleven trillion, one hundred fifty-six billion, one hundred fifty-six million, six hundred fifty-five thousand, five hundred five".