1606535524440 has 512 divisors, whose sum is σ = 6704529408000. Its totient is φ = 332424691200.

The previous prime is 1606535524417. The next prime is 1606535524463. The reversal of 1606535524440 is 444255356061.

1606535524440 is a `hidden beast` number, since 1 + 6 + 0 + 6 + 53 + 552 + 4 + 4 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (1606535524417) and next prime (1606535524463).

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 127 ways as a sum of consecutive naturals, for example, 19834825 + ... + 19915655.

It is an arithmetic number, because the mean of its divisors is an integer number (13094784000).

Almost surely, 2^{1606535524440} is an apocalyptic number.

1606535524440 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 1606535524440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3352264704000).

1606535524440 is an abundant number, since it is smaller than the sum of its proper divisors (5097993883560).

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

1606535524440 is a wasteful number, since it uses less digits than its factorization.

1606535524440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81108 (or 81098 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 45.

The spelling of 1606535524440 in words is "one trillion, six hundred six billion, five hundred thirty-five million, five hundred twenty-four thousand, four hundred forty".