531543140466 has 16 divisors (see below), whose sum is σ = 1144862148864. Its totient is φ = 163551735504.

The previous prime is 531543140441. The next prime is 531543140473. The reversal of 531543140466 is 664041345135.

It is a happy number.

It is a super-2 number, since 2×531543140466² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3407327746 + ... + 3407327901.

It is an arithmetic number, because the mean of its divisors is an integer number (71553884304).

Almost surely, 2^531543140466 is an apocalyptic number.

531543140466 is an abundant number, since it is smaller than the sum of its proper divisors (613319008398).

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

531543140466 is a wasteful number, since it uses less digits than its factorization.

531543140466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6814655665.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 531543140466 in words is "five hundred thirty-one billion, five hundred forty-three million, one hundred forty thousand, four hundred sixty-six".