16765551652 has 12 divisors (see below), whose sum is σ = 29340645516. Its totient is φ = 8382510080.

The previous prime is 16765551637. The next prime is 16765551653. The reversal of 16765551652 is 25615556761.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4547344356 + 12218207296 = 67434^2 + 110536^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16765551596 and 16765551605.

It is not an unprimeable number, because it can be changed into a prime (16765551653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165408 + ... + 246760.

It is an arithmetic number, because the mean of its divisors is an integer number (2445053793).

Almost surely, 2^16765551652 is an apocalyptic number.

It is an amenable number.

16765551652 is a deficient number, since it is larger than the sum of its proper divisors (12575093864).

16765551652 is a wasteful number, since it uses less digits than its factorization.

16765551652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132878 (or 132876 counting only the distinct ones).

The product of its digits is 1890000, while the sum is 49.

The spelling of 16765551652 in words is "sixteen billion, seven hundred sixty-five million, five hundred fifty-one thousand, six hundred fifty-two".