51400164426111 has 24 divisors (see below), whose sum is σ = 77535341501280. Its totient is φ = 32750419179456.

The previous prime is 51400164426103. The next prime is 51400164426179. The reversal of 51400164426111 is 11162446100415.

51400164426111 is a `hidden beast` number, since 5 + 1 + 4 + 0 + 0 + 1 + 644 + 2 + 6 + 1 + 1 + 1 = 666.

It is not a de Polignac number, because 51400164426111 - 2³ = 51400164426103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51400164426211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100111756 + ... + 100623873.

It is an arithmetic number, because the mean of its divisors is an integer number (3230639229220).

Almost surely, 2^{51400164426111} is an apocalyptic number.

51400164426111 is a deficient number, since it is larger than the sum of its proper divisors (26135177075169).

51400164426111 is a wasteful number, since it uses less digits than its factorization.

51400164426111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200736895 (or 200736892 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 51400164426111 in words is "fifty-one trillion, four hundred billion, one hundred sixty-four million, four hundred twenty-six thousand, one hundred eleven".