3166309981 has 8 divisors (see below), whose sum is σ = 3219329664. Its totient is φ = 3113326320.

The previous prime is 3166309931. The next prime is 3166309997. The reversal of 3166309981 is 1899036613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3166309981 - 2²³ = 3157921373 is a prime.

It is a super-2 number, since 2×3166309981² = 20051037791560440722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3166309931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213840 + ... + 228166.

It is an arithmetic number, because the mean of its divisors is an integer number (402416208).

Almost surely, 2^3166309981 is an apocalyptic number.

It is an amenable number.

3166309981 is a deficient number, since it is larger than the sum of its proper divisors (53019683).

3166309981 is a wasteful number, since it uses less digits than its factorization.

3166309981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18011.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 3166309981 is about 56269.9740625496. The cubic root of 3166309981 is about 1468.4228818119.

The spelling of 3166309981 in words is "three billion, one hundred sixty-six million, three hundred nine thousand, nine hundred eighty-one".