516156161551 has 4 divisors (see below), whose sum is σ = 519923724912. Its totient is φ = 512388598192.

The previous prime is 516156161539. The next prime is 516156161597. The reversal of 516156161551 is 155161651615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155161651615 = 5 ⋅31032330323.

It is a cyclic number.

It is not a de Polignac number, because 516156161551 - 2⁵ = 516156161519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 516156161498 and 516156161507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516156161951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1883781475 + ... + 1883781748.

It is an arithmetic number, because the mean of its divisors is an integer number (129980931228).

Almost surely, 2^516156161551 is an apocalyptic number.

516156161551 is a deficient number, since it is larger than the sum of its proper divisors (3767563361).

516156161551 is a wasteful number, since it uses less digits than its factorization.

516156161551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3767563360.

The product of its digits is 135000, while the sum is 43.

The spelling of 516156161551 in words is "five hundred sixteen billion, one hundred fifty-six million, one hundred sixty-one thousand, five hundred fifty-one".