16539644102 has 8 divisors (see below), whose sum is σ = 24836702112. Its totient is φ = 8260743400.

The previous prime is 16539644081. The next prime is 16539644111. The reversal of 16539644102 is 20144693561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 16539644102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4537049 + ... + 4540692.

It is an arithmetic number, because the mean of its divisors is an integer number (3104587764).

Almost surely, 2^16539644102 is an apocalyptic number.

16539644102 is a deficient number, since it is larger than the sum of its proper divisors (8297058010).

16539644102 is an equidigital number, since it uses as much as digits as its factorization.

16539644102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9078654.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 16539644102 in words is "sixteen billion, five hundred thirty-nine million, six hundred forty-four thousand, one hundred two".