1660330151 has 4 divisors (see below), whose sum is σ = 1688471400. Its totient is φ = 1632188904.

The previous prime is 1660330081. The next prime is 1660330163. The reversal of 1660330151 is 1510330661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1660330151 is a prime.

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 1660330151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660330951) 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, 14070536 + ... + 14070653.

It is an arithmetic number, because the mean of its divisors is an integer number (422117850).

Almost surely, 2^1660330151 is an apocalyptic number.

1660330151 is a deficient number, since it is larger than the sum of its proper divisors (28141249).

1660330151 is an equidigital number, since it uses as much as digits as its factorization.

1660330151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28141248.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 1660330151 is about 40747.1489922915. The cubic root of 1660330151 is about 1184.1266392632.

The spelling of 1660330151 in words is "one billion, six hundred sixty million, three hundred thirty thousand, one hundred fifty-one".