511161254513 has 48 divisors (see below), whose sum is σ = 679164393600. Its totient is φ = 380004678144.

The previous prime is 511161254503. The next prime is 511161254573. The reversal of 511161254513 is 315452161115.

It is not a de Polignac number, because 511161254513 - 2⁴ = 511161254497 is a prime.

It is a super-2 number, since 2×511161254513² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511161254503) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 6447170 + ... + 6525972.

It is an arithmetic number, because the mean of its divisors is an integer number (14149258200).

Almost surely, 2^511161254513 is an apocalyptic number.

It is an amenable number.

511161254513 is a deficient number, since it is larger than the sum of its proper divisors (168003139087).

511161254513 is a wasteful number, since it uses less digits than its factorization.

511161254513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79446 (or 79439 counting only the distinct ones).

The product of its digits is 18000, while the sum is 35.

The spelling of 511161254513 in words is "five hundred eleven billion, one hundred sixty-one million, two hundred fifty-four thousand, five hundred thirteen".