320074618381718 has 4 divisors (see below), whose sum is σ = 480111927572580. Its totient is φ = 160037309190858.

The previous prime is 320074618381711. The next prime is 320074618381759. The reversal of 320074618381718 is 817183816470023.

It is a happy number.

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

It is a super-2 number, since 2×320074618381718² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320074618381711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80018654595428 + ... + 80018654595431.

It is an arithmetic number, because the mean of its divisors is an integer number (120027981893145).

Almost surely, 2^{320074618381718} is an apocalyptic number.

320074618381718 is a deficient number, since it is larger than the sum of its proper divisors (160037309190862).

320074618381718 is a wasteful number, since it uses less digits than its factorization.

320074618381718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160037309190861.

The product of its (nonzero) digits is 10838016, while the sum is 59.

The spelling of 320074618381718 in words is "three hundred twenty trillion, seventy-four billion, six hundred eighteen million, three hundred eighty-one thousand, seven hundred eighteen".