1566667539360 has 2688 divisors, whose sum is σ = 7584793509888. Its totient is φ = 295612416000.

The previous prime is 1566667539331. The next prime is 1566667539407. The reversal of 1566667539360 is 639357666651.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 447 ways as a sum of consecutive naturals, for example, 4733134395 + ... + 4733134725.

It is an arithmetic number, because the mean of its divisors is an integer number (2821723776).

Almost surely, 2^{1566667539360} is an apocalyptic number.

1566667539360 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 1566667539360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3792396754944).

1566667539360 is an abundant number, since it is smaller than the sum of its proper divisors (6018125970528).

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

1566667539360 is a wasteful number, since it uses less digits than its factorization.

1566667539360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 110224800, while the sum is 63.

The spelling of 1566667539360 in words is "one trillion, five hundred sixty-six billion, six hundred sixty-seven million, five hundred thirty-nine thousand, three hundred sixty".