516421003161 has 8 divisors (see below), whose sum is σ = 786927242944. Its totient is φ = 295097716080.

The previous prime is 516421003127. The next prime is 516421003169. The reversal of 516421003161 is 161300124615.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 516421003161 - 2¹⁵ = 516420970393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516421003169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12295738150 + ... + 12295738191.

It is an arithmetic number, because the mean of its divisors is an integer number (98365905368).

Almost surely, 2^516421003161 is an apocalyptic number.

It is an amenable number.

516421003161 is a deficient number, since it is larger than the sum of its proper divisors (270506239783).

516421003161 is a wasteful number, since it uses less digits than its factorization.

516421003161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24591476351.

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 516421003161 its reverse (161300124615), we get a palindrome (677721127776).

The spelling of 516421003161 in words is "five hundred sixteen billion, four hundred twenty-one million, three thousand, one hundred sixty-one".