16775394061 has 2 divisors, whose sum is σ = 16775394062. Its totient is φ = 16775394060.

The previous prime is 16775394043. The next prime is 16775394091. The reversal of 16775394061 is 16049357761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16767660100 + 7733961 = 129490^2 + 2781^2 .

It is a cyclic number.

It is not a de Polignac number, because 16775394061 - 2⁵ = 16775394029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16775393996 and 16775394014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16775394091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8387697030 + 8387697031.

It is an arithmetic number, because the mean of its divisors is an integer number (8387697031).

Almost surely, 2^16775394061 is an apocalyptic number.

It is an amenable number.

16775394061 is a deficient number, since it is larger than the sum of its proper divisors (1).

16775394061 is an equidigital number, since it uses as much as digits as its factorization.

16775394061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 952560, while the sum is 49.

The spelling of 16775394061 in words is "sixteen billion, seven hundred seventy-five million, three hundred ninety-four thousand, sixty-one".