6610740864 has 256 divisors, whose sum is σ = 22200487680. Its totient is φ = 1696038912.

The previous prime is 6610740859. The next prime is 6610740869. The reversal of 6610740864 is 4680470166.

It is an interprime number because it is at equal distance from previous prime (6610740859) and next prime (6610740869).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (6610740869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1290372 + ... + 1295484.

It is an arithmetic number, because the mean of its divisors is an integer number (86720655).

Almost surely, 2^6610740864 is an apocalyptic number.

6610740864 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6610740864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11100243840).

6610740864 is an abundant number, since it is smaller than the sum of its proper divisors (15589746816).

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

6610740864 is a wasteful number, since it uses less digits than its factorization.

6610740864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5187 (or 5175 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 6610740864 is about 81306.4626213685. The cubic root of 6610740864 is about 1876.7944528951.

The spelling of 6610740864 in words is "six billion, six hundred ten million, seven hundred forty thousand, eight hundred sixty-four".