16508497097884 has 24 divisors (see below), whose sum is σ = 31583708327808. Its totient is φ = 7487794080240.

The previous prime is 16508497097881. The next prime is 16508497097899. The reversal of 16508497097884 is 48879079480561.

It is a self number, because there is not a number n which added to its sum of digits gives 16508497097884.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16508497097881) 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, 401685144 + ... + 401726239.

It is an arithmetic number, because the mean of its divisors is an integer number (1315987846992).

Almost surely, 2^{16508497097884} is an apocalyptic number.

It is an amenable number.

16508497097884 is a deficient number, since it is larger than the sum of its proper divisors (15075211229924).

16508497097884 is a wasteful number, since it uses less digits than its factorization.

16508497097884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803411865 (or 803411863 counting only the distinct ones).

The product of its (nonzero) digits is 975421440, while the sum is 76.

The spelling of 16508497097884 in words is "sixteen trillion, five hundred eight billion, four hundred ninety-seven million, ninety-seven thousand, eight hundred eighty-four".