8366814640 has 20 divisors (see below), whose sum is σ = 19452844224. Its totient is φ = 3346725824.

The previous prime is 8366814607. The next prime is 8366814667. The reversal of 8366814640 is 464186638.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 52292512 + ... + 52292671.

Almost surely, 2^8366814640 is an apocalyptic number.

8366814640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8366814640 is an abundant number, since it is smaller than the sum of its proper divisors (11086029584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8366814640 is a wasteful number, since it uses less digits than its factorization.

8366814640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104585196 (or 104585190 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The square root of 8366814640 is about 91470.2937570444. The cubic root of 8366814640 is about 2030.1122378834.

The spelling of 8366814640 in words is "eight billion, three hundred sixty-six million, eight hundred fourteen thousand, six hundred forty".