16542151352121 has 8 divisors (see below), whose sum is σ = 22070683884960. Its totient is φ = 11020859860352.

The previous prime is 16542151352063. The next prime is 16542151352179. The reversal of 16542151352121 is 12125315124561.

16542151352121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16542151352063) and next prime (16542151352179).

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

It is a cyclic number.

It is not a de Polignac number, because 16542151352121 - 2⁶ = 16542151352057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16542151352121.

It is not an unprimeable number, because it can be changed into a prime (16542151353121) 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, 1810254936 + ... + 1810264073.

It is an arithmetic number, because the mean of its divisors is an integer number (2758835485620).

Almost surely, 2^{16542151352121} is an apocalyptic number.

It is an amenable number.

16542151352121 is a deficient number, since it is larger than the sum of its proper divisors (5528532532839).

16542151352121 is a wasteful number, since it uses less digits than its factorization.

16542151352121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3620520535.

The product of its digits is 72000, while the sum is 39.

Adding to 16542151352121 its reverse (12125315124561), we get a palindrome (28667466476682).

The spelling of 16542151352121 in words is "sixteen trillion, five hundred forty-two billion, one hundred fifty-one million, three hundred fifty-two thousand, one hundred twenty-one".