605240121559 has 8 divisors (see below), whose sum is σ = 627356385920. Its totient is φ = 583285881600.

The previous prime is 605240121523. The next prime is 605240121601. The reversal of 605240121559 is 955121042506.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 605240121559 - 2²⁵ = 605206567127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605240101559) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 40498494 + ... + 40513435.

It is an arithmetic number, because the mean of its divisors is an integer number (78419548240).

Almost surely, 2^605240121559 is an apocalyptic number.

605240121559 is a deficient number, since it is larger than the sum of its proper divisors (22116264361).

605240121559 is a wasteful number, since it uses less digits than its factorization.

605240121559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81012201.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 605240121559 in words is "six hundred five billion, two hundred forty million, one hundred twenty-one thousand, five hundred fifty-nine".