2553360666 has 8 divisors (see below), whose sum is σ = 5106721344. Its totient is φ = 851120220.

The previous prime is 2553360661. The next prime is 2553360671. The reversal of 2553360666 is 6660633552.

It is an interprime number because it is at equal distance from previous prime (2553360661) and next prime (2553360671).

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

2553360666 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2553360661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212780050 + ... + 212780061.

It is an arithmetic number, because the mean of its divisors is an integer number (638340168).

Almost surely, 2^2553360666 is an apocalyptic number.

2553360666 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.

2553360666 is a wasteful number, since it uses less digits than its factorization.

2553360666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425560116.

The product of its (nonzero) digits is 583200, while the sum is 42.

The square root of 2553360666 is about 50530.7892873246. The cubic root of 2553360666 is about 1366.7971187658.

The spelling of 2553360666 in words is "two billion, five hundred fifty-three million, three hundred sixty thousand, six hundred sixty-six".