16966956401 has 2 divisors, whose sum is σ = 16966956402. Its totient is φ = 16966956400.

The previous prime is 16966956379. The next prime is 16966956421. The reversal of 16966956401 is 10465966961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16476289600 + 490666801 = 128360^2 + 22151^2 .

It is a cyclic number.

It is not a de Polignac number, because 16966956401 - 2¹⁰ = 16966955377 is a prime.

It is not a weakly prime, because it can be changed into another prime (16966956421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8483478200 + 8483478201.

It is an arithmetic number, because the mean of its divisors is an integer number (8483478201).

Almost surely, 2^16966956401 is an apocalyptic number.

It is an amenable number.

16966956401 is a deficient number, since it is larger than the sum of its proper divisors (1).

16966956401 is an equidigital number, since it uses as much as digits as its factorization.

16966956401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 16966956401 in words is "sixteen billion, nine hundred sixty-six million, nine hundred fifty-six thousand, four hundred one".