2653143666 has 8 divisors (see below), whose sum is σ = 5306287344. Its totient is φ = 884381220.

The previous prime is 2653143631. The next prime is 2653143707. The reversal of 2653143666 is 6663413562.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

2653143666 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221095300 + ... + 221095311.

It is an arithmetic number, because the mean of its divisors is an integer number (663285918).

Almost surely, 2^2653143666 is an apocalyptic number.

2653143666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2653143666 is a wasteful number, since it uses less digits than its factorization.

2653143666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442190616.

The product of its digits is 466560, while the sum is 42.

The square root of 2653143666 is about 51508.6756381874. The cubic root of 2653143666 is about 1384.3744938799.

The spelling of 2653143666 in words is "two billion, six hundred fifty-three million, one hundred forty-three thousand, six hundred sixty-six".