8466965640 has 384 divisors, whose sum is σ = 32946600960. Its totient is φ = 1915570944.

The previous prime is 8466965609. The next prime is 8466965641. The reversal of 8466965640 is 465696648.

8466965640 is a `hidden beast` number, since 8 + 466 + 96 + 56 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (8466965641) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7279699 + ... + 7280861.

It is an arithmetic number, because the mean of its divisors is an integer number (85798440).

Almost surely, 2^8466965640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8466965640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16473300480).

8466965640 is an abundant number, since it is smaller than the sum of its proper divisors (24479635320).

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

8466965640 is a wasteful number, since it uses less digits than its factorization.

8466965640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The square root of 8466965640 is about 92016.1161971097. The cubic root of 8466965640 is about 2038.1802977035.

The spelling of 8466965640 in words is "eight billion, four hundred sixty-six million, nine hundred sixty-five thousand, six hundred forty".