16920018435529 has 32 divisors (see below), whose sum is σ = 18816922736640. Its totient is φ = 15085609905600.

The previous prime is 16920018435503. The next prime is 16920018435533. The reversal of 16920018435529 is 92553481002961.

It is a cyclic number.

It is not a de Polignac number, because 16920018435529 - 2¹¹ = 16920018433481 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 16920018435529.

It is not an unprimeable number, because it can be changed into a prime (16920018435569) 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, 263572974 + ... + 263637160.

It is an arithmetic number, because the mean of its divisors is an integer number (588028835520).

Almost surely, 2^{16920018435529} is an apocalyptic number.

It is an amenable number.

16920018435529 is a deficient number, since it is larger than the sum of its proper divisors (1896904301111).

16920018435529 is a wasteful number, since it uses less digits than its factorization.

16920018435529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66301.

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 16920018435529 in words is "sixteen trillion, nine hundred twenty billion, eighteen million, four hundred thirty-five thousand, five hundred twenty-nine".