660527041 has 4 divisors (see below), whose sum is σ = 689245632. Its totient is φ = 631808452.

The previous prime is 660527011. The next prime is 660527047. The reversal of 660527041 is 140725066.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 660527041 - 2¹¹ = 660524993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 660526994 and 660527012.

It is not an unprimeable number, because it can be changed into a prime (660527047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14359261 + ... + 14359306.

It is an arithmetic number, because the mean of its divisors is an integer number (172311408).

Almost surely, 2^660527041 is an apocalyptic number.

It is an amenable number.

660527041 is a deficient number, since it is larger than the sum of its proper divisors (28718591).

660527041 is a wasteful number, since it uses less digits than its factorization.

660527041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28718590.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 660527041 is about 25700.7206319200. The cubic root of 660527041 is about 870.8904614298.

The spelling of 660527041 in words is "six hundred sixty million, five hundred twenty-seven thousand, forty-one".