16515104116242 has 128 divisors (see below), whose sum is σ = 36714682368000. Its totient is φ = 4929159977280.

The previous prime is 16515104116171. The next prime is 16515104116307. The reversal of 16515104116242 is 24261140151561.

It is a happy number.

It is a super-3 number, since 3×16515104116242³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16515104116242.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 76793259 + ... + 77008017.

It is an arithmetic number, because the mean of its divisors is an integer number (286833456000).

Almost surely, 2^{16515104116242} is an apocalyptic number.

16515104116242 is an abundant number, since it is smaller than the sum of its proper divisors (20199578251758).

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

16515104116242 is a wasteful number, since it uses less digits than its factorization.

16515104116242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215156.

The product of its (nonzero) digits is 57600, while the sum is 39.

The spelling of 16515104116242 in words is "sixteen trillion, five hundred fifteen billion, one hundred four million, one hundred sixteen thousand, two hundred forty-two".