118334541621 has 4 divisors (see below), whose sum is σ = 157779388832. Its totient is φ = 78889694412.

The previous prime is 118334541593. The next prime is 118334541643. The reversal of 118334541621 is 126145433811.

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 not a de Polignac number, because 118334541621 - 2¹⁸ = 118334279477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118334541621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118334541671) 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, 19722423601 + ... + 19722423606.

It is an arithmetic number, because the mean of its divisors is an integer number (39444847208).

Almost surely, 2^118334541621 is an apocalyptic number.

It is an amenable number.

118334541621 is a deficient number, since it is larger than the sum of its proper divisors (39444847211).

118334541621 is an equidigital number, since it uses as much as digits as its factorization.

118334541621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39444847210.

The product of its digits is 69120, while the sum is 39.

The spelling of 118334541621 in words is "one hundred eighteen billion, three hundred thirty-four million, five hundred forty-one thousand, six hundred twenty-one".