513534432166 has 24 divisors (see below), whose sum is σ = 896586142536. Its totient is φ = 219958230240.

The previous prime is 513534432121. The next prime is 513534432179. The reversal of 513534432166 is 661234435315.

It is a super-2 number, since 2×513534432166² (a number of 24 digits) contains 22 as substring.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 1353756 + ... + 1691071.

It is an arithmetic number, because the mean of its divisors is an integer number (37357755939).

Almost surely, 2^513534432166 is an apocalyptic number.

513534432166 is a deficient number, since it is larger than the sum of its proper divisors (383051710370).

513534432166 is a wasteful number, since it uses less digits than its factorization.

513534432166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3046564 (or 3046557 counting only the distinct ones).

The product of its digits is 777600, while the sum is 43.

The spelling of 513534432166 in words is "five hundred thirteen billion, five hundred thirty-four million, four hundred thirty-two thousand, one hundred sixty-six".