111702088161665 has 4 divisors (see below), whose sum is σ = 134042505794004. Its totient is φ = 89361670529328.

The previous prime is 111702088161619. The next prime is 111702088161679. The reversal of 111702088161665 is 566161880207111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43258086559744 + 68444001601921 = 6577088^2 + 8273089^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111702088161665 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11170208816162 + ... + 11170208816171.

It is an arithmetic number, because the mean of its divisors is an integer number (33510626448501).

Almost surely, 2^{111702088161665} is an apocalyptic number.

It is an amenable number.

111702088161665 is a deficient number, since it is larger than the sum of its proper divisors (22340417632339).

111702088161665 is an equidigital number, since it uses as much as digits as its factorization.

111702088161665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22340417632338.

The product of its (nonzero) digits is 967680, while the sum is 53.

The spelling of 111702088161665 in words is "one hundred eleven trillion, seven hundred two billion, eighty-eight million, one hundred sixty-one thousand, six hundred sixty-five".