660256700 has 36 divisors (see below), whose sum is σ = 1450037400. Its totient is φ = 260917440.

The previous prime is 660256673. The next prime is 660256703. The reversal of 660256700 is 7652066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660256703) 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 11 ways as a sum of consecutive naturals, for example, 31475 + ... + 48074.

Almost surely, 2^660256700 is an apocalyptic number.

It is an amenable number.

660256700 is an abundant number, since it is smaller than the sum of its proper divisors (789780700).

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

660256700 is a wasteful number, since it uses less digits than its factorization.

660256700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79646 (or 79639 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 660256700 is about 25695.4606886119. The cubic root of 660256700 is about 870.7716323176.

The spelling of 660256700 in words is "six hundred sixty million, two hundred fifty-six thousand, seven hundred".