1660002071 has 32 divisors (see below), whose sum is σ = 2098403328. Its totient is φ = 1278167040.

The previous prime is 1660002061. The next prime is 1660002083. The reversal of 1660002071 is 1702000661.

It is a cyclic number.

It is not a de Polignac number, because 1660002071 - 2⁶ = 1660002007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660002061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 824456 + ... + 826466.

It is an arithmetic number, because the mean of its divisors is an integer number (65575104).

Almost surely, 2^1660002071 is an apocalyptic number.

1660002071 is a deficient number, since it is larger than the sum of its proper divisors (438401257).

1660002071 is a wasteful number, since it uses less digits than its factorization.

1660002071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1660002071 is about 40743.1229902667. The cubic root of 1660002071 is about 1184.0486399450.

The spelling of 1660002071 in words is "one billion, six hundred sixty million, two thousand, seventy-one".