1566542481282 has 96 divisors (see below), whose sum is σ = 3664817694720. Its totient is φ = 481991005440.

The previous prime is 1566542481233. The next prime is 1566542481289. The reversal of 1566542481282 is 2821842456651.

1566542481282 is a `hidden beast` number, since 1 + 5 + 6 + 6 + 542 + 4 + 8 + 12 + 82 = 666.

It is a super-2 number, since 2×1566542481282² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1566542481289) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10540863 + ... + 10688445.

It is an arithmetic number, because the mean of its divisors is an integer number (38175184320).

Almost surely, 2^{1566542481282} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1566542481282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1832408847360).

1566542481282 is an abundant number, since it is smaller than the sum of its proper divisors (2098275213438).

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

1566542481282 is a wasteful number, since it uses less digits than its factorization.

1566542481282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148408 (or 148405 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 54.

The spelling of 1566542481282 in words is "one trillion, five hundred sixty-six billion, five hundred forty-two million, four hundred eighty-one thousand, two hundred eighty-two".