801666363 has 16 divisors (see below), whose sum is σ = 1093689216. Its totient is φ = 522181440.

The previous prime is 801666361. The next prime is 801666377. The reversal of 801666363 is 363666108.

It is not a de Polignac number, because 801666363 - 2¹ = 801666361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (801666361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6328 + ... + 40538.

It is an arithmetic number, because the mean of its divisors is an integer number (68355576).

Almost surely, 2^801666363 is an apocalyptic number.

801666363 is a deficient number, since it is larger than the sum of its proper divisors (292022853).

801666363 is a wasteful number, since it uses less digits than its factorization.

801666363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34394.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 801666363 is about 28313.7133382395. The cubic root of 801666363 is about 928.9618673765.

The spelling of 801666363 in words is "eight hundred one million, six hundred sixty-six thousand, three hundred sixty-three".