2666166360 has 128 divisors (see below), whose sum is σ = 9396898560. Its totient is φ = 596620800.

The previous prime is 2666166343. The next prime is 2666166383. The reversal of 2666166360 is 636616662.

It is a happy number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60526 + ... + 94845.

It is an arithmetic number, because the mean of its divisors is an integer number (73413270).

Almost surely, 2^2666166360 is an apocalyptic number.

2666166360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2666166360 is an abundant number, since it is smaller than the sum of its proper divisors (6730732200).

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

2666166360 is a wasteful number, since it uses less digits than its factorization.

2666166360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155409 (or 155405 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 42.

The square root of 2666166360 is about 51634.9335237298. The cubic root of 2666166360 is about 1386.6358199602.

The spelling of 2666166360 in words is "two billion, six hundred sixty-six million, one hundred sixty-six thousand, three hundred sixty".