16442621502252 has 96 divisors (see below), whose sum is σ = 43051522719744. Its totient is φ = 4841257243200.

The previous prime is 16442621502233. The next prime is 16442621502253. The reversal of 16442621502252 is 25220512624461.

It is a happy number.

16442621502252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×16442621502252³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16442621502253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6499308 + ... + 8667539.

It is an arithmetic number, because the mean of its divisors is an integer number (448453361664).

Almost surely, 2^{16442621502252} is an apocalyptic number.

16442621502252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16442621502252 is an abundant number, since it is smaller than the sum of its proper divisors (26608901217492).

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

16442621502252 is a wasteful number, since it uses less digits than its factorization.

16442621502252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15167099 (or 15167097 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 16442621502252 in words is "sixteen trillion, four hundred forty-two billion, six hundred twenty-one million, five hundred two thousand, two hundred fifty-two".