6611298660 has 36 divisors (see below), whose sum is σ = 20054273148. Its totient is φ = 1763012928.

The previous prime is 6611298649. The next prime is 6611298671. The reversal of 6611298660 is 668921166.

6611298660 is a `hidden beast` number, since 6 + 611 + 29 + 8 + 6 + 6 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (6611298649) and next prime (6611298671).

It can be written as a sum of positive squares in 2 ways, for example, as 5170185216 + 1441113444 = 71904^2 + 37962^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18364539 + ... + 18364898.

It is an arithmetic number, because the mean of its divisors is an integer number (557063143).

Almost surely, 2^6611298660 is an apocalyptic number.

6611298660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6611298660 is an abundant number, since it is smaller than the sum of its proper divisors (13442974488).

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

6611298660 is a wasteful number, since it uses less digits than its factorization.

6611298660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36729452 (or 36729447 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 6611298660 is about 81309.8927560478. The cubic root of 6611298660 is about 1876.8472376493.

The spelling of 6611298660 in words is "six billion, six hundred eleven million, two hundred ninety-eight thousand, six hundred sixty".