516156160991 has 8 divisors (see below), whose sum is σ = 538616926080. Its totient is φ = 493696995352.

The previous prime is 516156160987. The next prime is 516156161011. The reversal of 516156160991 is 199061651615.

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

It is a cyclic number.

It is not a de Polignac number, because 516156160991 - 2² = 516156160987 is a prime.

It is a super-2 number, since 2×516156160991² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516156130991) 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, 284540 + ... + 1055118.

It is an arithmetic number, because the mean of its divisors is an integer number (67327115760).

Almost surely, 2^516156160991 is an apocalyptic number.

516156160991 is a deficient number, since it is larger than the sum of its proper divisors (22460765089).

516156160991 is a wasteful number, since it uses less digits than its factorization.

516156160991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799725.

The product of its (nonzero) digits is 437400, while the sum is 50.

The spelling of 516156160991 in words is "five hundred sixteen billion, one hundred fifty-six million, one hundred sixty thousand, nine hundred ninety-one".