16538932733 has 2 divisors, whose sum is σ = 16538932734. Its totient is φ = 16538932732.

The previous prime is 16538932703. The next prime is 16538932747. The reversal of 16538932733 is 33723983561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16538474404 + 458329 = 128602^2 + 677^2 .

It is a cyclic number.

It is not a de Polignac number, because 16538932733 - 2¹⁴ = 16538916349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16538932703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8269466366 + 8269466367.

It is an arithmetic number, because the mean of its divisors is an integer number (8269466367).

Almost surely, 2^16538932733 is an apocalyptic number.

It is an amenable number.

16538932733 is a deficient number, since it is larger than the sum of its proper divisors (1).

16538932733 is an equidigital number, since it uses as much as digits as its factorization.

16538932733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 50.

The spelling of 16538932733 in words is "sixteen billion, five hundred thirty-eight million, nine hundred thirty-two thousand, seven hundred thirty-three".