8162056566157 has 4 divisors (see below), whose sum is σ = 8789907071260. Its totient is φ = 7534206061056.

The previous prime is 8162056566043. The next prime is 8162056566163. The reversal of 8162056566157 is 7516656502618.

It is a happy number.

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 4898581799076 + 3263474767081 = 2213274^2 + 1806509^2 .

It is a cyclic number.

It is not a de Polignac number, because 8162056566157 - 2⁷ = 8162056566029 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 (8162056566197) 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, 313925252532 + ... + 313925252557.

It is an arithmetic number, because the mean of its divisors is an integer number (2197476767815).

Almost surely, 2^{8162056566157} is an apocalyptic number.

It is an amenable number.

8162056566157 is a deficient number, since it is larger than the sum of its proper divisors (627850505103).

8162056566157 is a wasteful number, since it uses less digits than its factorization.

8162056566157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627850505102.

The product of its (nonzero) digits is 18144000, while the sum is 58.

The spelling of 8162056566157 in words is "eight trillion, one hundred sixty-two billion, fifty-six million, five hundred sixty-six thousand, one hundred fifty-seven".