8158020471 has 12 divisors (see below), whose sum is σ = 11789573848. Its totient is φ = 5436018864.

The previous prime is 8158020467. The next prime is 8158020473. The reversal of 8158020471 is 1740208518.

8158020471 is a `hidden beast` number, since 8 + 1 + 580 + 2 + 0 + 4 + 71 = 666.

It is not a de Polignac number, because 8158020471 - 2² = 8158020467 is a prime.

It is a super-3 number, since 3×8158020471³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8158020473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202285 + ... + 239238.

Almost surely, 2^8158020471 is an apocalyptic number.

8158020471 is a deficient number, since it is larger than the sum of its proper divisors (3631553377).

8158020471 is a wasteful number, since it uses less digits than its factorization.

8158020471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443582 (or 443579 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 8158020471 is about 90321.7607833240. The cubic root of 8158020471 is about 2013.0826086628.

Adding to 8158020471 its reverse (1740208518), we get a palindrome (9898228989).

The spelling of 8158020471 in words is "eight billion, one hundred fifty-eight million, twenty thousand, four hundred seventy-one".