51116501001528 has 24 divisors (see below), whose sum is σ = 138440523546000. Its totient is φ = 17038833667152.

The previous prime is 51116501001521. The next prime is 51116501001529. The reversal of 51116501001528 is 82510010561115.

51116501001528 is a `hidden beast` number, since 5 + 1 + 116 + 5 + 0 + 10 + 0 + 1 + 528 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×51116501001528² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 51116501001492 and 51116501001501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51116501001521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 354975701328 + ... + 354975701471.

It is an arithmetic number, because the mean of its divisors is an integer number (5768355147750).

Almost surely, 2^{51116501001528} is an apocalyptic number.

It is an amenable number.

51116501001528 is an abundant number, since it is smaller than the sum of its proper divisors (87324022544472).

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

51116501001528 is a wasteful number, since it uses less digits than its factorization.

51116501001528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709951402811 (or 709951402804 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 36.

The spelling of 51116501001528 in words is "fifty-one trillion, one hundred sixteen billion, five hundred one million, one thousand, five hundred twenty-eight".