16338666733 has 2 divisors, whose sum is σ = 16338666734. Its totient is φ = 16338666732.

The previous prime is 16338666727. The next prime is 16338666797. The reversal of 16338666733 is 33766683361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16276146084 + 62520649 = 127578^2 + 7907^2 .

It is a cyclic number.

It is not a de Polignac number, because 16338666733 - 2²¹ = 16336569581 is a prime.

It is a super-2 number, since 2×16338666733² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16338666133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8169333366 + 8169333367.

It is an arithmetic number, because the mean of its divisors is an integer number (8169333367).

Almost surely, 2^16338666733 is an apocalyptic number.

It is an amenable number.

16338666733 is a deficient number, since it is larger than the sum of its proper divisors (1).

16338666733 is an equidigital number, since it uses as much as digits as its factorization.

16338666733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 52.

The spelling of 16338666733 in words is "sixteen billion, three hundred thirty-eight million, six hundred sixty-six thousand, seven hundred thirty-three".