604731536640 has 1440 divisors, whose sum is σ = 2718110545920. Its totient is φ = 124714598400.

The previous prime is 604731536579. The next prime is 604731536749. The reversal of 604731536640 is 46635137406.

604731536640 is a `hidden beast` number, since 6 + 0 + 4 + 73 + 1 + 536 + 6 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1684488781 + ... + 1684489139.

It is an arithmetic number, because the mean of its divisors is an integer number (1887576768).

Almost surely, 2^604731536640 is an apocalyptic number.

604731536640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 604731536640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1359055272960).

604731536640 is an abundant number, since it is smaller than the sum of its proper divisors (2113379009280).

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

604731536640 is a wasteful number, since it uses less digits than its factorization.

604731536640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 598 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 604731536640 in words is "six hundred four billion, seven hundred thirty-one million, five hundred thirty-six thousand, six hundred forty".