8654165521 has 4 divisors (see below), whose sum is σ = 8763712000. Its totient is φ = 8544619044.

The previous prime is 8654165519. The next prime is 8654165539. The reversal of 8654165521 is 1255614568.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8654165521 - 2¹ = 8654165519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8654165621) 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, 54773121 + ... + 54773278.

It is an arithmetic number, because the mean of its divisors is an integer number (2190928000).

Almost surely, 2^8654165521 is an apocalyptic number.

It is an amenable number.

8654165521 is a deficient number, since it is larger than the sum of its proper divisors (109546479).

8654165521 is a wasteful number, since it uses less digits than its factorization.

8654165521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109546478.

The product of its digits is 288000, while the sum is 43.

The square root of 8654165521 is about 93027.7674729433. The cubic root of 8654165521 is about 2053.0919450072.

The spelling of 8654165521 in words is "eight billion, six hundred fifty-four million, one hundred sixty-five thousand, five hundred twenty-one".