512161521136 has 20 divisors (see below), whose sum is σ = 1007123590312. Its totient is φ = 252258659136.

The previous prime is 512161521077. The next prime is 512161521143. The reversal of 512161521136 is 631125161215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238880235 + ... + 238882378.

Almost surely, 2^512161521136 is an apocalyptic number.

It is an amenable number.

512161521136 is a deficient number, since it is larger than the sum of its proper divisors (494962069176).

512161521136 is a wasteful number, since it uses less digits than its factorization.

512161521136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477762688 (or 477762682 counting only the distinct ones).

The product of its digits is 10800, while the sum is 34.

The spelling of 512161521136 in words is "five hundred twelve billion, one hundred sixty-one million, five hundred twenty-one thousand, one hundred thirty-six".