801768161 has 16 divisors (see below), whose sum is σ = 871492608. Its totient is φ = 734630400.

The previous prime is 801768157. The next prime is 801768193. The reversal of 801768161 is 161867108.

It is a cyclic number.

It is not a de Polignac number, because 801768161 - 2² = 801768157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (801768101) 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, 438896 + ... + 440718.

It is an arithmetic number, because the mean of its divisors is an integer number (54468288).

Almost surely, 2^801768161 is an apocalyptic number.

It is an amenable number.

801768161 is a deficient number, since it is larger than the sum of its proper divisors (69724447).

801768161 is a wasteful number, since it uses less digits than its factorization.

801768161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 801768161 is about 28315.5109613088. The cubic root of 801768161 is about 929.0011865006.

The spelling of 801768161 in words is "eight hundred one million, seven hundred sixty-eight thousand, one hundred sixty-one".