116372407661 has 4 divisors (see below), whose sum is σ = 116615356800. Its totient is φ = 116129458524.

The previous prime is 116372407639. The next prime is 116372407667. The reversal of 116372407661 is 166704273611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 166704273611 = 3209 ⋅51948979.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116372407661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116372407667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121473851 + ... + 121474808.

It is an arithmetic number, because the mean of its divisors is an integer number (29153839200).

Almost surely, 2^116372407661 is an apocalyptic number.

It is an amenable number.

116372407661 is a deficient number, since it is larger than the sum of its proper divisors (242949139).

116372407661 is an equidigital number, since it uses as much as digits as its factorization.

116372407661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242949138.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 116372407661 in words is "one hundred sixteen billion, three hundred seventy-two million, four hundred seven thousand, six hundred sixty-one".