51130016660452 has 12 divisors (see below), whose sum is σ = 89971880146876. Its totient is φ = 25423765189920.

The previous prime is 51130016660431. The next prime is 51130016660453. The reversal of 51130016660452 is 25406661003115.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27268511149476 + 23861505510976 = 5221926^2 + 4884824^2 .

It is a super-2 number, since 2×51130016660452² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51130016660453) 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, 35310784263 + ... + 35310785710.

Almost surely, 2^{51130016660452} is an apocalyptic number.

It is an amenable number.

51130016660452 is a deficient number, since it is larger than the sum of its proper divisors (38841863486424).

51130016660452 is a wasteful number, since it uses less digits than its factorization.

51130016660452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70621570158 (or 70621570156 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

Adding to 51130016660452 its reverse (25406661003115), we get a palindrome (76536677663567).

The spelling of 51130016660452 in words is "fifty-one trillion, one hundred thirty billion, sixteen million, six hundred sixty thousand, four hundred fifty-two".