1604538678060 has 288 divisors, whose sum is σ = 5159052767232. Its totient is φ = 402848709120.

The previous prime is 1604538678049. The next prime is 1604538678089. The reversal of 1604538678060 is 608768354061.

1604538678060 is a `hidden beast` number, since 1 + 60 + 453 + 8 + 6 + 78 + 0 + 60 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1604538677988 and 1604538678006.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 69536325 + ... + 69559395.

It is an arithmetic number, because the mean of its divisors is an integer number (17913377664).

Almost surely, 2^{1604538678060} is an apocalyptic number.

1604538678060 is a gapful number since it is divisible by the number (10) 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 1604538678060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2579526383616).

1604538678060 is an abundant number, since it is smaller than the sum of its proper divisors (3554514089172).

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

1604538678060 is a wasteful number, since it uses less digits than its factorization.

1604538678060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23373 (or 23368 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 1604538678060 in words is "one trillion, six hundred four billion, five hundred thirty-eight million, six hundred seventy-eight thousand, sixty".