1671660606 has 64 divisors (see below), whose sum is σ = 4179732480. Its totient is φ = 433006560.

The previous prime is 1671660589. The next prime is 1671660611. The reversal of 1671660606 is 6060661761.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170325 + ... + 179871.

It is an arithmetic number, because the mean of its divisors is an integer number (65308320).

Almost surely, 2^1671660606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1671660606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2089866240).

1671660606 is an abundant number, since it is smaller than the sum of its proper divisors (2508071874).

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

1671660606 is a wasteful number, since it uses less digits than its factorization.

1671660606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9949.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 1671660606 is about 40885.9463141065. The cubic root of 1671660606 is about 1186.8141146616.

The spelling of 1671660606 in words is "one billion, six hundred seventy-one million, six hundred sixty thousand, six hundred six".