16765777133 has 12 divisors (see below), whose sum is σ = 19749925440. Its totient is φ = 14188755672.

The previous prime is 16765777097. The next prime is 16765777139. The reversal of 16765777133 is 33177756761.

It is a happy number.

It is not a de Polignac number, because 16765777133 - 2²² = 16761582829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16765777139) 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, 2161691 + ... + 2169432.

It is an arithmetic number, because the mean of its divisors is an integer number (1645827120).

Almost surely, 2^16765777133 is an apocalyptic number.

It is an amenable number.

16765777133 is a deficient number, since it is larger than the sum of its proper divisors (2984148307).

16765777133 is an equidigital number, since it uses as much as digits as its factorization.

16765777133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4331216 (or 4331209 counting only the distinct ones).

The product of its digits is 3889620, while the sum is 53.

The spelling of 16765777133 in words is "sixteen billion, seven hundred sixty-five million, seven hundred seventy-seven thousand, one hundred thirty-three".