605685661464 has 128 divisors (see below), whose sum is σ = 1703578060800. Its totient is φ = 178179886080.

The previous prime is 605685661463. The next prime is 605685661487. The reversal of 605685661464 is 464166586506.

605685661464 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605685661463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 425532 + ... + 1180020.

It is an arithmetic number, because the mean of its divisors is an integer number (13309203600).

Almost surely, 2^605685661464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 605685661464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (851789030400).

605685661464 is an abundant number, since it is smaller than the sum of its proper divisors (1097892399336).

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

605685661464 is a wasteful number, since it uses less digits than its factorization.

605685661464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754625 (or 754621 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 57.

The spelling of 605685661464 in words is "six hundred five billion, six hundred eighty-five million, six hundred sixty-one thousand, four hundred sixty-four".