16152122521 has 8 divisors (see below), whose sum is σ = 16181239680. Its totient is φ = 16123032288.

The previous prime is 16152122461. The next prime is 16152122527. The reversal of 16152122521 is 12522125161.

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 16152122521 - 2⁹ = 16152122009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16152122521.

It is not an unprimeable number, because it can be changed into a prime (16152122527) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1471365 + ... + 1482301.

It is an arithmetic number, because the mean of its divisors is an integer number (2022654960).

Almost surely, 2^16152122521 is an apocalyptic number.

It is an amenable number.

16152122521 is a deficient number, since it is larger than the sum of its proper divisors (29117159).

16152122521 is a wasteful number, since it uses less digits than its factorization.

16152122521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13463.

The product of its digits is 2400, while the sum is 28.

Adding to 16152122521 its reverse (12522125161), we get a palindrome (28674247682).

The spelling of 16152122521 in words is "sixteen billion, one hundred fifty-two million, one hundred twenty-two thousand, five hundred twenty-one".