16770505 has 8 divisors (see below), whose sum is σ = 20162952. Its totient is φ = 13390848.

The previous prime is 16770503. The next prime is 16770511. The reversal of 16770505 is 50507761.

It can be written as a sum of positive squares in 4 ways, for example, as 8173881 + 8596624 = 2859^2 + 2932^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16770505 - 2¹ = 16770503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16770503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22 + ... + 5791.

It is an arithmetic number, because the mean of its divisors is an integer number (2520369).

Almost surely, 2^16770505 is an apocalyptic number.

It is an amenable number.

16770505 is a deficient number, since it is larger than the sum of its proper divisors (3392447).

16770505 is an equidigital number, since it uses as much as digits as its factorization.

16770505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6395.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 16770505 is about 4095.1807041937. The cubic root of 16770505 is about 255.9658615366.

The spelling of 16770505 in words is "sixteen million, seven hundred seventy thousand, five hundred five".