2355666879 has 8 divisors (see below), whose sum is σ = 3146470272. Its totient is φ = 1567654040.

The previous prime is 2355666871. The next prime is 2355666889. The reversal of 2355666879 is 9786665532.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2355666879 - 2³ = 2355666871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2355666871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695667 + ... + 699044.

It is an arithmetic number, because the mean of its divisors is an integer number (393308784).

Almost surely, 2^2355666879 is an apocalyptic number.

2355666879 is a deficient number, since it is larger than the sum of its proper divisors (790803393).

2355666879 is a wasteful number, since it uses less digits than its factorization.

2355666879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395277.

The product of its digits is 16329600, while the sum is 57.

The square root of 2355666879 is about 48535.2127738202. The cubic root of 2355666879 is about 1330.5707085831.

The spelling of 2355666879 in words is "two billion, three hundred fifty-five million, six hundred sixty-six thousand, eight hundred seventy-nine".