51145305660033 has 16 divisors (see below), whose sum is σ = 75230618459136. Its totient is φ = 30706374879360.

The previous prime is 51145305660017. The next prime is 51145305660067. The reversal of 51145305660033 is 33006650354115.

It is a happy number.

It is not a de Polignac number, because 51145305660033 - 2⁴ = 51145305660017 is a prime.

It is a super-2 number, since 2×51145305660033² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51145305680033) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 15992901985 + ... + 15992905182.

It is an arithmetic number, because the mean of its divisors is an integer number (4701913653696).

Almost surely, 2^{51145305660033} is an apocalyptic number.

It is an amenable number.

51145305660033 is a deficient number, since it is larger than the sum of its proper divisors (24085312799103).

51145305660033 is a wasteful number, since it uses less digits than its factorization.

51145305660033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31985807224.

The product of its (nonzero) digits is 486000, while the sum is 42.

The spelling of 51145305660033 in words is "fifty-one trillion, one hundred forty-five billion, three hundred five million, six hundred sixty thousand, thirty-three".