51334221516143 has 4 divisors (see below), whose sum is σ = 52990164145728. Its totient is φ = 49678278886560.

The previous prime is 51334221516103. The next prime is 51334221516157. The reversal of 51334221516143 is 34161512243315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51334221516143 - 2¹⁸ = 51334221253999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51334221516143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51334221516103) 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, 827971314746 + ... + 827971314807.

It is an arithmetic number, because the mean of its divisors is an integer number (13247541036432).

Almost surely, 2^{51334221516143} is an apocalyptic number.

51334221516143 is a deficient number, since it is larger than the sum of its proper divisors (1655942629585).

51334221516143 is a wasteful number, since it uses less digits than its factorization.

51334221516143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655942629584.

The product of its digits is 259200, while the sum is 41.

Adding to 51334221516143 its reverse (34161512243315), we get a palindrome (85495733759458).

The spelling of 51334221516143 in words is "fifty-one trillion, three hundred thirty-four billion, two hundred twenty-one million, five hundred sixteen thousand, one hundred forty-three".