111555645983 has 8 divisors (see below), whose sum is σ = 114589821408. Its totient is φ = 108522478944.

The previous prime is 111555645967. The next prime is 111555645989. The reversal of 111555645983 is 389546555111.

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 111555645983 - 2⁴ = 111555645967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111555645989) 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, 25091 + ... + 473012.

It is an arithmetic number, because the mean of its divisors is an integer number (14323727676).

Almost surely, 2^111555645983 is an apocalyptic number.

111555645983 is a deficient number, since it is larger than the sum of its proper divisors (3034175425).

111555645983 is an equidigital number, since it uses as much as digits as its factorization.

111555645983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504193.

The product of its digits is 3240000, while the sum is 53.

The spelling of 111555645983 in words is "one hundred eleven billion, five hundred fifty-five million, six hundred forty-five thousand, nine hundred eighty-three".