601565664 has 192 divisors, whose sum is σ = 1895104512. Its totient is φ = 163468800.

The previous prime is 601565639. The next prime is 601565677. The reversal of 601565664 is 466565106.

601565664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1395529 + ... + 1395959.

It is an arithmetic number, because the mean of its divisors is an integer number (9870336).

Almost surely, 2^601565664 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 601565664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (947552256).

601565664 is an abundant number, since it is smaller than the sum of its proper divisors (1293538848).

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

601565664 is a wasteful number, since it uses less digits than its factorization.

601565664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 601565664 is about 24526.8355887995. The cubic root of 601565664 is about 844.1656570830.

The spelling of 601565664 in words is "six hundred one million, five hundred sixty-five thousand, six hundred sixty-four".