516444770164 has 12 divisors (see below), whose sum is σ = 903812962500. Its totient is φ = 258212495168.

The previous prime is 516444770123. The next prime is 516444770183. The reversal of 516444770164 is 461077444615.

It can be written as a sum of positive squares in 2 ways, for example, as 348680802064 + 167763968100 = 590492^2 + 409590^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2354359 + ... + 2564350.

It is an arithmetic number, because the mean of its divisors is an integer number (75317746875).

Almost surely, 2^516444770164 is an apocalyptic number.

It is an amenable number.

516444770164 is a deficient number, since it is larger than the sum of its proper divisors (387368192336).

516444770164 is a wasteful number, since it uses less digits than its factorization.

516444770164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4944962 (or 4944960 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 516444770164 in words is "five hundred sixteen billion, four hundred forty-four million, seven hundred seventy thousand, one hundred sixty-four".