111620556011 has 8 divisors (see below), whose sum is σ = 112208712000. Its totient is φ = 111033858888.

The previous prime is 111620556001. The next prime is 111620556013. The reversal of 111620556011 is 110655026111.

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 111620556011 - 2⁶ = 111620555947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111620556013) 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, 211121 + ... + 517506.

It is an arithmetic number, because the mean of its divisors is an integer number (14026089000).

Almost surely, 2^111620556011 is an apocalyptic number.

111620556011 is a deficient number, since it is larger than the sum of its proper divisors (588155989).

111620556011 is an equidigital number, since it uses as much as digits as its factorization.

111620556011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729433.

The product of its (nonzero) digits is 1800, while the sum is 29.

The spelling of 111620556011 in words is "one hundred eleven billion, six hundred twenty million, five hundred fifty-six thousand, eleven".