8160749481 has 8 divisors (see below), whose sum is σ = 10881446464. Its totient is φ = 5440276080.

The previous prime is 8160749459. The next prime is 8160749483. The reversal of 8160749481 is 1849470618.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8160749481 - 2¹⁵ = 8160716713 is a prime.

It is a super-2 number, since 2×8160749481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8160749481.

It is not an unprimeable number, because it can be changed into a prime (8160749483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69396 + ... + 145386.

It is an arithmetic number, because the mean of its divisors is an integer number (1360180808).

Almost surely, 2^8160749481 is an apocalyptic number.

It is an amenable number.

8160749481 is a deficient number, since it is larger than the sum of its proper divisors (2720696983).

8160749481 is a wasteful number, since it uses less digits than its factorization.

8160749481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111791.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 8160749481 is about 90336.8666769000. The cubic root of 8160749481 is about 2013.3070548635.

The spelling of 8160749481 in words is "eight billion, one hundred sixty million, seven hundred forty-nine thousand, four hundred eighty-one".