660963958 has 8 divisors (see below), whose sum is σ = 1023428160. Its totient is φ = 319821240.

The previous prime is 660963937. The next prime is 660963983. The reversal of 660963958 is 859369066.

It is a happy number.

660963958 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent 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, 5330293 + ... + 5330416.

It is an arithmetic number, because the mean of its divisors is an integer number (127928520).

Almost surely, 2^660963958 is an apocalyptic number.

660963958 is a deficient number, since it is larger than the sum of its proper divisors (362464202).

660963958 is a wasteful number, since it uses less digits than its factorization.

660963958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10660742.

The product of its (nonzero) digits is 2099520, while the sum is 52.

The square root of 660963958 is about 25709.2193191470. The cubic root of 660963958 is about 871.0824409438.

The spelling of 660963958 in words is "six hundred sixty million, nine hundred sixty-three thousand, nine hundred fifty-eight".