111216550643 has 8 divisors (see below), whose sum is σ = 122440240560. Its totient is φ = 100178376480.

The previous prime is 111216550637. The next prime is 111216550699. The reversal of 111216550643 is 346055612111.

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 111216550643 - 2²⁰ = 111215502067 is a prime.

It is a super-2 number, since 2×111216550643² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111216550043) 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, 46377680 + ... + 46380077.

It is an arithmetic number, because the mean of its divisors is an integer number (15305030070).

Almost surely, 2^111216550643 is an apocalyptic number.

111216550643 is a deficient number, since it is larger than the sum of its proper divisors (11223689917).

111216550643 is a wasteful number, since it uses less digits than its factorization.

111216550643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92757877.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 111216550643 in words is "one hundred eleven billion, two hundred sixteen million, five hundred fifty thousand, six hundred forty-three".