8505164649 has 8 divisors (see below), whose sum is σ = 11340760480. Its totient is φ = 5669839296.

The previous prime is 8505164537. The next prime is 8505164663. The reversal of 8505164649 is 9464615058.

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

It is not a de Polignac number, because 8505164649 - 2¹⁷ = 8505033577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8505164598 and 8505164607.

It is not an unprimeable number, because it can be changed into a prime (8505164249) 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, 23169 + ... + 132465.

It is an arithmetic number, because the mean of its divisors is an integer number (1417595060).

Almost surely, 2^8505164649 is an apocalyptic number.

It is an amenable number.

8505164649 is a deficient number, since it is larger than the sum of its proper divisors (2835595831).

8505164649 is a wasteful number, since it uses less digits than its factorization.

8505164649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135239.

The product of its (nonzero) digits is 1036800, while the sum is 48.

The square root of 8505164649 is about 92223.4495613778. The cubic root of 8505164649 is about 2041.2408067993.

The spelling of 8505164649 in words is "eight billion, five hundred five million, one hundred sixty-four thousand, six hundred forty-nine".