8161473772067 has 16 divisors (see below), whose sum is σ = 10175906506752. Its totient is φ = 6359238337920.

The previous prime is 8161473772051. The next prime is 8161473772069. The reversal of 8161473772067 is 7602773741618.

It is a cyclic number.

It is not a de Polignac number, because 8161473772067 - 2⁴ = 8161473772051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8161473771997 and 8161473772015.

It is not an unprimeable number, because it can be changed into a prime (8161473772069) 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, 1524038 + ... + 4318059.

It is an arithmetic number, because the mean of its divisors is an integer number (635994156672).

Almost surely, 2^{8161473772067} is an apocalyptic number.

8161473772067 is a deficient number, since it is larger than the sum of its proper divisors (2014432734685).

8161473772067 is a wasteful number, since it uses less digits than its factorization.

8161473772067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5860258.

The product of its (nonzero) digits is 16595712, while the sum is 59.

The spelling of 8161473772067 in words is "eight trillion, one hundred sixty-one billion, four hundred seventy-three million, seven hundred seventy-two thousand, sixty-seven".