16522994871 has 20 divisors (see below), whose sum is σ = 25981579800. Its totient is φ = 10435574736.

The previous prime is 16522994869. The next prime is 16522994897. The reversal of 16522994871 is 17849922561.

It is a happy number.

16522994871 is a `hidden beast` number, since 1 + 6 + 522 + 9 + 9 + 48 + 71 = 666.

It is not a de Polignac number, because 16522994871 - 2¹ = 16522994869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16522990871) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5366556 + ... + 5369633.

It is an arithmetic number, because the mean of its divisors is an integer number (1299078990).

Almost surely, 2^16522994871 is an apocalyptic number.

16522994871 is a deficient number, since it is larger than the sum of its proper divisors (9458584929).

16522994871 is a wasteful number, since it uses less digits than its factorization.

16522994871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10736220 (or 10736211 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

It can be divided in two parts, 165229 and 94871, that added together give a square (260100 = 510²).

The spelling of 16522994871 in words is "sixteen billion, five hundred twenty-two million, nine hundred ninety-four thousand, eight hundred seventy-one".