113561624061 has 12 divisors (see below), whose sum is σ = 173682484092. Its totient is φ = 71254352256.

The previous prime is 113561624053. The next prime is 113561624087. The reversal of 113561624061 is 160426165311.

113561624061 is a `hidden beast` number, since 1 + 1 + 35 + 616 + 2 + 4 + 0 + 6 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 103285747161 + 10275876900 = 321381^2 + 101370^2 .

It is not a de Polignac number, because 113561624061 - 2³ = 113561624053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113561624041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 371116266 + ... + 371116571.

It is an arithmetic number, because the mean of its divisors is an integer number (14473540341).

Almost surely, 2^113561624061 is an apocalyptic number.

It is an amenable number.

113561624061 is a deficient number, since it is larger than the sum of its proper divisors (60120860031).

113561624061 is a wasteful number, since it uses less digits than its factorization.

113561624061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742232860 (or 742232857 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

Adding to 113561624061 its reverse (160426165311), we get a palindrome (273987789372).

The spelling of 113561624061 in words is "one hundred thirteen billion, five hundred sixty-one million, six hundred twenty-four thousand, sixty-one".