1660127117 has 8 divisors (see below), whose sum is σ = 1828632000. Its totient is φ = 1494552960.

The previous prime is 1660127089. The next prime is 1660127123. The reversal of 1660127117 is 7117210661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1660127117 - 2¹² = 1660123021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660127167) 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 7 ways as a sum of consecutive naturals, for example, 731492 + ... + 733757.

It is an arithmetic number, because the mean of its divisors is an integer number (228579000).

Almost surely, 2^1660127117 is an apocalyptic number.

It is an amenable number.

1660127117 is a deficient number, since it is larger than the sum of its proper divisors (168504883).

1660127117 is a wasteful number, since it uses less digits than its factorization.

1660127117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465363.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 1660127117 is about 40744.6575270918. The cubic root of 1660127117 is about 1184.0783701948.

Adding to 1660127117 its reverse (7117210661), we get a palindrome (8777337778).

The spelling of 1660127117 in words is "one billion, six hundred sixty million, one hundred twenty-seven thousand, one hundred seventeen".