1660101066 has 24 divisors (see below), whose sum is σ = 3873569700. Its totient is φ = 510800256.

The previous prime is 1660101059. The next prime is 1660101067. The reversal of 1660101066 is 6601010661.

It can be written as a sum of positive squares in 2 ways, for example, as 1330133841 + 329967225 = 36471^2 + 18165^2 .

It is not an unprimeable number, because it can be changed into a prime (1660101067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3546991 + ... + 3547458.

Almost surely, 2^1660101066 is an apocalyptic number.

1660101066 is an abundant number, since it is smaller than the sum of its proper divisors (2213468634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1660101066 is a wasteful number, since it uses less digits than its factorization.

1660101066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7094470 (or 7094467 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1660101066 is about 40744.3378397539. The cubic root of 1660101066 is about 1184.0721765753.

The spelling of 1660101066 in words is "one billion, six hundred sixty million, one hundred one thousand, sixty-six".