111101145665 has 8 divisors (see below), whose sum is σ = 133326623808. Its totient is φ = 88877417200.

The previous prime is 111101145641. The next prime is 111101145691. The reversal of 111101145665 is 566541101111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111101145665 - 2⁶ = 111101145601 is a prime.

It is a super-4 number, since 4×111101145665⁴ (a number of 45 digits) contains 4444 as substring.

It is a Duffinian number.

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, 293411 + ... + 555240.

It is an arithmetic number, because the mean of its divisors is an integer number (16665827976).

Almost surely, 2^111101145665 is an apocalyptic number.

It is an amenable number.

111101145665 is a deficient number, since it is larger than the sum of its proper divisors (22225478143).

111101145665 is an equidigital number, since it uses as much as digits as its factorization.

111101145665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874839.

The product of its (nonzero) digits is 3600, while the sum is 32.

Adding to 111101145665 its reverse (566541101111), we get a palindrome (677642246776).

The spelling of 111101145665 in words is "one hundred eleven billion, one hundred one million, one hundred forty-five thousand, six hundred sixty-five".