605661064 has 8 divisors (see below), whose sum is σ = 1135614510. Its totient is φ = 302830528.

The previous prime is 605661037. The next prime is 605661083. The reversal of 605661064 is 460166506.

It can be written as a sum of positive squares in only one way, i.e., 369792900 + 235868164 = 19230^2 + 15358^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×605661064² = 733650648891224192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37853809 + ... + 37853824.

Almost surely, 2^605661064 is an apocalyptic number.

It is an amenable number.

605661064 is a deficient number, since it is larger than the sum of its proper divisors (529953446).

605661064 is a wasteful number, since it uses less digits than its factorization.

605661064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75707639 (or 75707635 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 605661064 is about 24610.1821204151. The cubic root of 605661064 is about 846.0769918771.

The spelling of 605661064 in words is "six hundred five million, six hundred sixty-one thousand, sixty-four".