16540347208 has 32 divisors (see below), whose sum is σ = 38665748160. Its totient is φ = 6444290880.

The previous prime is 16540347203. The next prime is 16540347289. The reversal of 16540347208 is 80274304561.

It is a super-2 number, since 2×16540347208² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16540347203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13424991 + ... + 13426222.

It is an arithmetic number, because the mean of its divisors is an integer number (1208304630).

Almost surely, 2^16540347208 is an apocalyptic number.

It is an amenable number.

16540347208 is an abundant number, since it is smaller than the sum of its proper divisors (22125400952).

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

16540347208 is a wasteful number, since it uses less digits than its factorization.

16540347208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26851237 (or 26851233 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 16540347208 in words is "sixteen billion, five hundred forty million, three hundred forty-seven thousand, two hundred eight".