531913316066 has 32 divisors (see below), whose sum is σ = 885501766656. Its totient is φ = 237606754000.

The previous prime is 531913316021. The next prime is 531913316071. The reversal of 531913316066 is 660613319135.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 61700 + ... + 1033263.

It is an arithmetic number, because the mean of its divisors is an integer number (27671930208).

Almost surely, 2^531913316066 is an apocalyptic number.

531913316066 is a deficient number, since it is larger than the sum of its proper divisors (353588450590).

531913316066 is a wasteful number, since it uses less digits than its factorization.

531913316066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095358.

The product of its (nonzero) digits is 262440, while the sum is 44.

The spelling of 531913316066 in words is "five hundred thirty-one billion, nine hundred thirteen million, three hundred sixteen thousand, sixty-six".