240054455720605 has 4 divisors (see below), whose sum is σ = 288065346864732. Its totient is φ = 192043564576480.

The previous prime is 240054455720561. The next prime is 240054455720621. The reversal of 240054455720605 is 506027554450042.

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

It can be written as a sum of positive squares in 2 ways, for example, as 85271520810564 + 154782934910041 = 9234258^2 + 12441179^2 .

It is a de Polignac number, because none of the positive numbers 2^k-240054455720605 is a prime.

It is a super-2 number, since 2×240054455720605² (a number of 30 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24005445572056 + ... + 24005445572065.

It is an arithmetic number, because the mean of its divisors is an integer number (72016336716183).

Almost surely, 2^{240054455720605} is an apocalyptic number.

It is an amenable number.

240054455720605 is a deficient number, since it is larger than the sum of its proper divisors (48010891144127).

240054455720605 is an equidigital number, since it uses as much as digits as its factorization.

240054455720605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48010891144126.

The product of its (nonzero) digits is 6720000, while the sum is 49.

The spelling of 240054455720605 in words is "two hundred forty trillion, fifty-four billion, four hundred fifty-five million, seven hundred twenty thousand, six hundred five".