8454641656 has 16 divisors (see below), whose sum is σ = 16363823040. Its totient is φ = 4090955520.

The previous prime is 8454641651. The next prime is 8454641659. The reversal of 8454641656 is 6561464548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8454641651) 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, 17045401 + ... + 17045896.

It is an arithmetic number, because the mean of its divisors is an integer number (1022738940).

Almost surely, 2^8454641656 is an apocalyptic number.

It is an amenable number.

8454641656 is a deficient number, since it is larger than the sum of its proper divisors (7909181384).

8454641656 is a wasteful number, since it uses less digits than its factorization.

8454641656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34091334 (or 34091330 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 49.

The square root of 8454641656 is about 91949.1253683253. The cubic root of 8454641656 is about 2037.1909350722.

The spelling of 8454641656 in words is "eight billion, four hundred fifty-four million, six hundred forty-one thousand, six hundred fifty-six".