8161741801 has 4 divisors (see below), whose sum is σ = 8165650900. Its totient is φ = 8157832704.

The previous prime is 8161741799. The next prime is 8161741823. The reversal of 8161741801 is 1081471618.

8161741801 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1081471618 = 2 ⋅540735809.

It can be written as a sum of positive squares in 2 ways, for example, as 7684275600 + 477466201 = 87660^2 + 21851^2 .

It is a cyclic number.

It is not a de Polignac number, because 8161741801 - 2¹ = 8161741799 is a prime.

It is a super-2 number, since 2×8161741801² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8161741891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1951416 + ... + 1955593.

It is an arithmetic number, because the mean of its divisors is an integer number (2041412725).

Almost surely, 2^8161741801 is an apocalyptic number.

It is an amenable number.

8161741801 is a deficient number, since it is larger than the sum of its proper divisors (3909099).

8161741801 is a wasteful number, since it uses less digits than its factorization.

8161741801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909098.

The product of its (nonzero) digits is 10752, while the sum is 37.

The square root of 8161741801 is about 90342.3588412435. The cubic root of 8161741801 is about 2013.3886553705.

The spelling of 8161741801 in words is "eight billion, one hundred sixty-one million, seven hundred forty-one thousand, eight hundred one".