16513126544052 has 18 divisors (see below), whose sum is σ = 41741514319778. Its totient is φ = 5504375514672.

The previous prime is 16513126544017. The next prime is 16513126544053. The reversal of 16513126544052 is 25044562131561.

16513126544052 is a `hidden beast` number, since 1 + 6 + 5 + 1 + 31 + 26 + 544 + 0 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8652033976356 + 7861092567696 = 2941434^2 + 2803764^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 16513126543989 and 16513126544007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16513126544053) 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 5 ways as a sum of consecutive naturals, for example, 229348979743 + ... + 229348979814.

Almost surely, 2^{16513126544052} is an apocalyptic number.

16513126544052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16513126544052 is an abundant number, since it is smaller than the sum of its proper divisors (25228387775726).

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

16513126544052 is a wasteful number, since it uses less digits than its factorization.

16513126544052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458697959567 (or 458697959562 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 16513126544052 in words is "sixteen trillion, five hundred thirteen billion, one hundred twenty-six million, five hundred forty-four thousand, fifty-two".