11685230145 has 12 divisors (see below), whose sum is σ = 20254398996. Its totient is φ = 6232122720.

The previous prime is 11685230131. The next prime is 11685230153. The reversal of 11685230145 is 54103258611.

11685230145 is a `hidden beast` number, since 116 + 8 + 523 + 0 + 14 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1190457009 + 10494773136 = 34503^2 + 102444^2 .

It is not a de Polignac number, because 11685230145 - 2⁸ = 11685229889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129835846 + ... + 129835935.

It is an arithmetic number, because the mean of its divisors is an integer number (1687866583).

Almost surely, 2^11685230145 is an apocalyptic number.

11685230145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11685230145 is a deficient number, since it is larger than the sum of its proper divisors (8569168851).

11685230145 is a wasteful number, since it uses less digits than its factorization.

11685230145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259671792 (or 259671789 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

Adding to 11685230145 its reverse (54103258611), we get a palindrome (65788488756).

The spelling of 11685230145 in words is "eleven billion, six hundred eighty-five million, two hundred thirty thousand, one hundred forty-five".