516190993922 has 18 divisors (see below), whose sum is σ = 793696192137. Its totient is φ = 251780163600.

The previous prime is 516190993907. The next prime is 516190993933. The reversal of 516190993922 is 229399091615.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 368642051281 + 147548942641 = 607159^2 + 384121^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=508031.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 41652347 + ... + 41664737.

Almost surely, 2^516190993922 is an apocalyptic number.

516190993922 is a deficient number, since it is larger than the sum of its proper divisors (277505198215).

516190993922 is an frugal number, since it uses more digits than its factorization.

516190993922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24866 (or 12434 counting only the distinct ones).

The product of its (nonzero) digits is 2361960, while the sum is 56.

The spelling of 516190993922 in words is "five hundred sixteen billion, one hundred ninety million, nine hundred ninety-three thousand, nine hundred twenty-two".