511161320416 has 48 divisors (see below), whose sum is σ = 1011974644800. Its totient is φ = 254154613248.

The previous prime is 511161320399. The next prime is 511161320431. The reversal of 511161320416 is 614023161115.

It is a super-3 number, since 3×511161320416³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 7 ways as a sum of consecutive naturals, for example, 6032841 + ... + 6116983.

It is an arithmetic number, because the mean of its divisors is an integer number (21082805100).

Almost surely, 2^511161320416 is an apocalyptic number.

It is an amenable number.

511161320416 is a deficient number, since it is larger than the sum of its proper divisors (500813324384).

511161320416 is a wasteful number, since it uses less digits than its factorization.

511161320416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85211 (or 85203 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 511161320416 in words is "five hundred eleven billion, one hundred sixty-one million, three hundred twenty thousand, four hundred sixteen".