8161470445133 has 4 divisors (see below), whose sum is σ = 8162069114268. Its totient is φ = 8160871776000.

The previous prime is 8161470445129. The next prime is 8161470445151. The reversal of 8161470445133 is 3315440741618.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6723742348324 + 1437728096809 = 2593018^2 + 1199053^2 .

It is a cyclic number.

It is not a de Polignac number, because 8161470445133 - 2² = 8161470445129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8161470445333) 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, 299314118 + ... + 299341383.

It is an arithmetic number, because the mean of its divisors is an integer number (2040517278567).

Almost surely, 2^{8161470445133} is an apocalyptic number.

It is an amenable number.

8161470445133 is a deficient number, since it is larger than the sum of its proper divisors (598669135).

8161470445133 is a wasteful number, since it uses less digits than its factorization.

8161470445133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598669134.

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 8161470445133 in words is "eight trillion, one hundred sixty-one billion, four hundred seventy million, four hundred forty-five thousand, one hundred thirty-three".