660160497 has 4 divisors (see below), whose sum is σ = 880214000. Its totient is φ = 440106996.

The previous prime is 660160489. The next prime is 660160511. The reversal of 660160497 is 794061066.

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 not a de Polignac number, because 660160497 - 2³ = 660160489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660160477) 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 3 ways as a sum of consecutive naturals, for example, 110026747 + ... + 110026752.

It is an arithmetic number, because the mean of its divisors is an integer number (220053500).

Almost surely, 2^660160497 is an apocalyptic number.

It is an amenable number.

660160497 is a deficient number, since it is larger than the sum of its proper divisors (220053503).

660160497 is a wasteful number, since it uses less digits than its factorization.

660160497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220053502.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 660160497 is about 25693.5886360781. The cubic root of 660160497 is about 870.7293382057.

The spelling of 660160497 in words is "six hundred sixty million, one hundred sixty thousand, four hundred ninety-seven".