51164334323444 has 12 divisors (see below), whose sum is σ = 89565314288100. Its totient is φ = 25574244526848.

The previous prime is 51164334323437. The next prime is 51164334323447. The reversal of 51164334323444 is 44432343346115.

It can be written as a sum of positive squares in 2 ways, for example, as 15904941610000 + 35259392713444 = 3988100^2 + 5937962^2 .

It is a super-2 number, since 2×51164334323444² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51164334323447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1980644189 + ... + 1980670020.

It is an arithmetic number, because the mean of its divisors is an integer number (7463776190675).

Almost surely, 2^{51164334323444} is an apocalyptic number.

It is an amenable number.

51164334323444 is a deficient number, since it is larger than the sum of its proper divisors (38400979964656).

51164334323444 is a wasteful number, since it uses less digits than its factorization.

51164334323444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3961317442 (or 3961317440 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 47.

Adding to 51164334323444 its reverse (44432343346115), we get a palindrome (95596677669559).

The spelling of 51164334323444 in words is "fifty-one trillion, one hundred sixty-four billion, three hundred thirty-four million, three hundred twenty-three thousand, four hundred forty-four".