660967260 has 96 divisors (see below), whose sum is σ = 1912825152. Its totient is φ = 170403840.

The previous prime is 660967247. The next prime is 660967267. The reversal of 660967260 is 62769066.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660967267) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 383200 + ... + 384920.

It is an arithmetic number, because the mean of its divisors is an integer number (19925262).

Almost surely, 2^660967260 is an apocalyptic number.

660967260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660967260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (956412576).

660967260 is an abundant number, since it is smaller than the sum of its proper divisors (1251857892).

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

660967260 is a wasteful number, since it uses less digits than its factorization.

660967260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943 (or 1941 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 660967260 is about 25709.2835372750. The cubic root of 660967260 is about 871.0838915067.

The spelling of 660967260 in words is "six hundred sixty million, nine hundred sixty-seven thousand, two hundred sixty".