660241449 has 56 divisors (see below), whose sum is σ = 1142665920. Its totient is φ = 373504608.

The previous prime is 660241429. The next prime is 660241451. The reversal of 660241449 is 944142066.

660241449 is a `hidden beast` number, since 6 + 602 + 4 + 1 + 4 + 49 = 666.

It is not a de Polignac number, because 660241449 - 2¹¹ = 660239401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (660241429) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 555634 + ... + 556820.

Almost surely, 2^660241449 is an apocalyptic number.

It is an amenable number.

660241449 is a deficient number, since it is larger than the sum of its proper divisors (482424471).

660241449 is a wasteful number, since it uses less digits than its factorization.

660241449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 660241449 is about 25695.1639224193. The cubic root of 660241449 is about 870.7649277332.

The spelling of 660241449 in words is "six hundred sixty million, two hundred forty-one thousand, four hundred forty-nine".