8281163045401 has 9 divisors (see below), whose sum is σ = 8399649146709. Its totient is φ = 8164325507100.

The previous prime is 8281163045291. The next prime is 8281163045431. The reversal of 8281163045401 is 1045403611828.

The square root of 8281163045401 is 2877701.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2^k-8281163045401 is a prime.

It is a super-2 number, since 2×8281163045401² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8281163045431) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 204296506 + ... + 204337036.

Almost surely, 2^{8281163045401} is an apocalyptic number.

8281163045401 is the 2877701-st square number.

8281163045401 is the 1438851-st centered octagonal number.

It is an amenable number.

8281163045401 is a deficient number, since it is larger than the sum of its proper divisors (118486101308).

8281163045401 is an frugal number, since it uses more digits than its factorization.

8281163045401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81204 (or 40602 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 8281163045401 in words is "eight trillion, two hundred eighty-one billion, one hundred sixty-three million, forty-five thousand, four hundred one".