605105605020 has 144 divisors (see below), whose sum is σ = 1971191255040. Its totient is φ = 138290495616.

The previous prime is 605105605009. The next prime is 605105605031. The reversal of 605105605020 is 20506501506.

It is an interprime number because it is at equal distance from previous prime (605105605009) and next prime (605105605031).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38585541 + ... + 38601219.

It is an arithmetic number, because the mean of its divisors is an integer number (13688828160).

Almost surely, 2^605105605020 is an apocalyptic number.

605105605020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

605105605020 is an abundant number, since it is smaller than the sum of its proper divisors (1366085650020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

605105605020 is a wasteful number, since it uses less digits than its factorization.

605105605020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28832 (or 28823 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 605105605020 in words is "six hundred five billion, one hundred five million, six hundred five thousand, twenty".