111562260665 has 4 divisors (see below), whose sum is σ = 133874712804. Its totient is φ = 89249808528.

The previous prime is 111562260653. The next prime is 111562260671. The reversal of 111562260665 is 566062265111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 566062265111 = 7 ⋅80866037873.

It can be written as a sum of positive squares in 2 ways, for example, as 64582565161 + 46979695504 = 254131^2 + 216748^2 .

It is a cyclic number.

It is not a de Polignac number, because 111562260665 - 2⁸ = 111562260409 is a prime.

It is a super-2 number, since 2×111562260665² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11156226062 + ... + 11156226071.

It is an arithmetic number, because the mean of its divisors is an integer number (33468678201).

Almost surely, 2^111562260665 is an apocalyptic number.

It is an amenable number.

111562260665 is a deficient number, since it is larger than the sum of its proper divisors (22312452139).

111562260665 is an equidigital number, since it uses as much as digits as its factorization.

111562260665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22312452138.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 111562260665 in words is "one hundred eleven billion, five hundred sixty-two million, two hundred sixty thousand, six hundred sixty-five".