16442023643502 has 32 divisors (see below), whose sum is σ = 33210134413344. Its totient is φ = 5426328336000.

The previous prime is 16442023643497. The next prime is 16442023643519. The reversal of 16442023643502 is 20534632024461.

It is a happy number.

It is a super-3 number, since 3×16442023643502³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50001408 + ... + 50329164.

It is an arithmetic number, because the mean of its divisors is an integer number (1037816700417).

Almost surely, 2^{16442023643502} is an apocalyptic number.

16442023643502 is an abundant number, since it is smaller than the sum of its proper divisors (16768110769842).

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

16442023643502 is a wasteful number, since it uses less digits than its factorization.

16442023643502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410644.

The product of its (nonzero) digits is 829440, while the sum is 42.

Adding to 16442023643502 its reverse (20534632024461), we get a palindrome (36976655667963).

The spelling of 16442023643502 in words is "sixteen trillion, four hundred forty-two billion, twenty-three million, six hundred forty-three thousand, five hundred two".