511161254116 has 12 divisors (see below), whose sum is σ = 903388949820. Its totient is φ = 253050125600.

The previous prime is 511161254113. The next prime is 511161254117. The reversal of 511161254116 is 611452161115.

It can be written as a sum of positive squares in 2 ways, for example, as 495897640000 + 15263614116 = 704200^2 + 123546^2 .

It is a super-2 number, since 2×511161254116² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511161254113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632624911 + ... + 632625718.

It is an arithmetic number, because the mean of its divisors is an integer number (75282412485).

Almost surely, 2^511161254116 is an apocalyptic number.

It is an amenable number.

511161254116 is a deficient number, since it is larger than the sum of its proper divisors (392227695704).

511161254116 is a wasteful number, since it uses less digits than its factorization.

511161254116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265250734 (or 1265250732 counting only the distinct ones).

The product of its digits is 7200, while the sum is 34.

The spelling of 511161254116 in words is "five hundred eleven billion, one hundred sixty-one million, two hundred fifty-four thousand, one hundred sixteen".