235666680 has 32 divisors (see below), whose sum is σ = 707000400. Its totient is φ = 62844416.

The previous prime is 235666663. The next prime is 235666723. The reversal of 235666680 is 86666532.

235666680 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 981825 + ... + 982064.

Almost surely, 2^235666680 is an apocalyptic number.

235666680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235666680 is an abundant number, since it is smaller than the sum of its proper divisors (471333720).

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

235666680 is a wasteful number, since it uses less digits than its factorization.

235666680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963903 (or 1963899 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 235666680 is about 15351.4390204958. The cubic root of 235666680 is about 617.6835866245.

The spelling of 235666680 in words is "two hundred thirty-five million, six hundred sixty-six thousand, six hundred eighty".