16766461 has 2 divisors, whose sum is σ = 16766462. Its totient is φ = 16766460.

The previous prime is 16766459. The next prime is 16766479. The reversal of 16766461 is 16466761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16760836 + 5625 = 4094^2 + 75^2 .

It is a cyclic number.

It is not a de Polignac number, because 16766461 - 2¹ = 16766459 is a prime.

It is a super-2 number, since 2×16766461² = 562228428929042, which contains 22 as substring.

Together with 16766459, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 16766461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16766161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8383230 + 8383231.

It is an arithmetic number, because the mean of its divisors is an integer number (8383231).

Almost surely, 2^16766461 is an apocalyptic number.

It is an amenable number.

16766461 is a deficient number, since it is larger than the sum of its proper divisors (1).

16766461 is an equidigital number, since it uses as much as digits as its factorization.

16766461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 16766461 is about 4094.6869233190. The cubic root of 16766461 is about 255.9452855480.

The spelling of 16766461 in words is "sixteen million, seven hundred sixty-six thousand, four hundred sixty-one".