118220643326 has 4 divisors (see below), whose sum is σ = 177330964992. Its totient is φ = 59110321662.

The previous prime is 118220643323. The next prime is 118220643377. The reversal of 118220643326 is 623346022811.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×118220643326² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 118220643326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118220643323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29555160830 + ... + 29555160833.

It is an arithmetic number, because the mean of its divisors is an integer number (44332741248).

Almost surely, 2^118220643326 is an apocalyptic number.

118220643326 is a deficient number, since it is larger than the sum of its proper divisors (59110321666).

118220643326 is an equidigital number, since it uses as much as digits as its factorization.

118220643326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59110321665.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 118220643326 in words is "one hundred eighteen billion, two hundred twenty million, six hundred forty-three thousand, three hundred twenty-six".