16234536671890 has 16 divisors (see below), whose sum is σ = 29843914223232. Its totient is φ = 6355648399024.

The previous prime is 16234536671827. The next prime is 16234536671917. The reversal of 16234536671890 is 9817663543261.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17270783224 + ... + 17270784163.

It is an arithmetic number, because the mean of its divisors is an integer number (1865244638952).

It is a 1-persistent number, because it is pandigital, but 2⋅16234536671890 = 32469073343780 is not.

Almost surely, 2^{16234536671890} is an apocalyptic number.

16234536671890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16234536671890 is a deficient number, since it is larger than the sum of its proper divisors (13609377551342).

16234536671890 is a wasteful number, since it uses less digits than its factorization.

16234536671890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34541567441.

The product of its (nonzero) digits is 39191040, while the sum is 61.

The spelling of 16234536671890 in words is "sixteen trillion, two hundred thirty-four billion, five hundred thirty-six million, six hundred seventy-one thousand, eight hundred ninety".