660453059 has 4 divisors (see below), whose sum is σ = 754803504. Its totient is φ = 566102616.

The previous prime is 660453023. The next prime is 660453061. The reversal of 660453059 is 950354066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 660453059 - 2⁸ = 660452803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (660450059) 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, 47175212 + ... + 47175225.

It is an arithmetic number, because the mean of its divisors is an integer number (188700876).

Almost surely, 2^660453059 is an apocalyptic number.

660453059 is a deficient number, since it is larger than the sum of its proper divisors (94350445).

660453059 is an equidigital number, since it uses as much as digits as its factorization.

660453059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94350444.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 660453059 is about 25699.2812934525. The cubic root of 660453059 is about 870.8579456660.

The spelling of 660453059 in words is "six hundred sixty million, four hundred fifty-three thousand, fifty-nine".