111513316645 has 8 divisors (see below), whose sum is σ = 133859040120. Its totient is φ = 89181946560.

The previous prime is 111513316639. The next prime is 111513316693. The reversal of 111513316645 is 546613315111.

It can be written as a sum of positive squares in 4 ways, for example, as 24605687044 + 86907629601 = 156862^2 + 294801^2 .

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

It is not a de Polignac number, because 111513316645 - 2¹³ = 111513308453 is a prime.

It is a congruent 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, 3571246 + ... + 3602335.

It is an arithmetic number, because the mean of its divisors is an integer number (16732380015).

Almost surely, 2^111513316645 is an apocalyptic number.

It is an amenable number.

111513316645 is a deficient number, since it is larger than the sum of its proper divisors (22345723475).

111513316645 is an equidigital number, since it uses as much as digits as its factorization.

111513316645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7176695.

The product of its digits is 32400, while the sum is 37.

The spelling of 111513316645 in words is "one hundred eleven billion, five hundred thirteen million, three hundred sixteen thousand, six hundred forty-five".