605589985506 has 32 divisors (see below), whose sum is σ = 1321344763200. Its totient is φ = 183504127680.

The previous prime is 605589985499. The next prime is 605589985547.

605589985506 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1427460 + ... + 1802448.

It is an arithmetic number, because the mean of its divisors is an integer number (41292023850).

Almost surely, 2^605589985506 is an apocalyptic number.

605589985506 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

605589985506 is an abundant number, since it is smaller than the sum of its proper divisors (715754777694).

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

605589985506 is a wasteful number, since it uses less digits than its factorization.

605589985506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399474.

The product of its (nonzero) digits is 116640000, while the sum is 66.

The spelling of 605589985506 in words is "six hundred five billion, five hundred eighty-nine million, nine hundred eighty-five thousand, five hundred six".