113201525661 has 16 divisors (see below), whose sum is σ = 176704821888. Its totient is φ = 63108864000.

The previous prime is 113201525651. The next prime is 113201525687. The reversal of 113201525661 is 166525102311.

It is not a de Polignac number, because 113201525661 - 2⁶ = 113201525597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113201525611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65737540 + ... + 65739261.

It is an arithmetic number, because the mean of its divisors is an integer number (11044051368).

Almost surely, 2^113201525661 is an apocalyptic number.

It is an amenable number.

113201525661 is a deficient number, since it is larger than the sum of its proper divisors (63503296227).

113201525661 is a wasteful number, since it uses less digits than its factorization.

113201525661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131476852.

The product of its (nonzero) digits is 10800, while the sum is 33.

Adding to 113201525661 its reverse (166525102311), we get a palindrome (279726627972).

The spelling of 113201525661 in words is "one hundred thirteen billion, two hundred one million, five hundred twenty-five thousand, six hundred sixty-one".