16923487237553 has 12 divisors (see below), whose sum is σ = 18325789004160. Its totient is φ = 15621376985136.

The previous prime is 16923487237519. The next prime is 16923487237561. The reversal of 16923487237553 is 35573278432961.

It is not a de Polignac number, because 16923487237553 - 2¹⁴ = 16923487221169 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 16923487237553.

It is not an unprimeable number, because it can be changed into a prime (16923487237513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7994168 + ... + 9887046.

It is an arithmetic number, because the mean of its divisors is an integer number (1527149083680).

Almost surely, 2^{16923487237553} is an apocalyptic number.

16923487237553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16923487237553 is a deficient number, since it is larger than the sum of its proper divisors (1402301766607).

16923487237553 is a wasteful number, since it uses less digits than its factorization.

16923487237553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945808 (or 1945795 counting only the distinct ones).

The product of its digits is 228614400, while the sum is 65.

The spelling of 16923487237553 in words is "sixteen trillion, nine hundred twenty-three billion, four hundred eighty-seven million, two hundred thirty-seven thousand, five hundred fifty-three".