1660214163 has 4 divisors (see below), whose sum is σ = 2213618888. Its totient is φ = 1106809440.

The previous prime is 1660214159. The next prime is 1660214177. The reversal of 1660214163 is 3614120661.

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

It is not a de Polignac number, because 1660214163 - 2² = 1660214159 is a prime.

It is a super-2 number, since 2×1660214163² = 5512622134051581138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1660214163.

It is not an unprimeable number, because it can be changed into a prime (1660214113) 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, 276702358 + ... + 276702363.

It is an arithmetic number, because the mean of its divisors is an integer number (553404722).

Almost surely, 2^1660214163 is an apocalyptic number.

1660214163 is a deficient number, since it is larger than the sum of its proper divisors (553404725).

1660214163 is an equidigital number, since it uses as much as digits as its factorization.

1660214163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553404724.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1660214163 is about 40745.7257022132. The cubic root of 1660214163 is about 1184.0990648921.

The spelling of 1660214163 in words is "one billion, six hundred sixty million, two hundred fourteen thousand, one hundred sixty-three".