118036973661 has 4 divisors (see below), whose sum is σ = 157382631552. Its totient is φ = 78691315772.

The previous prime is 118036973633. The next prime is 118036973671. The reversal of 118036973661 is 166379630811.

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.

It is a cyclic number.

It is not a de Polignac number, because 118036973661 - 2⁵ = 118036973629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118036973671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19672828941 + ... + 19672828946.

It is an arithmetic number, because the mean of its divisors is an integer number (39345657888).

Almost surely, 2^118036973661 is an apocalyptic number.

It is an amenable number.

118036973661 is a deficient number, since it is larger than the sum of its proper divisors (39345657891).

118036973661 is an equidigital number, since it uses as much as digits as its factorization.

118036973661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39345657890.

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 118036973661 in words is "one hundred eighteen billion, thirty-six million, nine hundred seventy-three thousand, six hundred sixty-one".