51343722162558 has 168 divisors, whose sum is σ = 138655889484480. Its totient is φ = 14196420262080.

The previous prime is 51343722162547. The next prime is 51343722162619. The reversal of 51343722162558 is 85526122734315.

51343722162558 is a `hidden beast` number, since 5 + 1 + 3 + 4 + 3 + 7 + 2 + 2 + 1 + 625 + 5 + 8 = 666.

51343722162558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 9376863 + ... + 13806266.

Almost surely, 2^{51343722162558} is an apocalyptic number.

51343722162558 is an abundant number, since it is smaller than the sum of its proper divisors (87312167321922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51343722162558 is a wasteful number, since it uses less digits than its factorization.

51343722162558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23183194 (or 23183172 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 54.

The spelling of 51343722162558 in words is "fifty-one trillion, three hundred forty-three billion, seven hundred twenty-two million, one hundred sixty-two thousand, five hundred fifty-eight".