3161666543 has 6 divisors (see below), whose sum is σ = 3677857056. Its totient is φ = 2709999852.

The previous prime is 3161666513. The next prime is 3161666587. The reversal of 3161666543 is 3456661613.

It is not a de Polignac number, because 3161666543 - 2⁶ = 3161666479 is a prime.

It is a super-3 number, since 3×3161666543³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 3161666543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3161666513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32261855 + ... + 32261952.

It is an arithmetic number, because the mean of its divisors is an integer number (612976176).

Almost surely, 2^3161666543 is an apocalyptic number.

3161666543 is a deficient number, since it is larger than the sum of its proper divisors (516190513).

3161666543 is an equidigital number, since it uses as much as digits as its factorization.

3161666543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64523821 (or 64523814 counting only the distinct ones).

The product of its digits is 233280, while the sum is 41.

The square root of 3161666543 is about 56228.6985711034. The cubic root of 3161666543 is about 1467.7047097098.

The spelling of 3161666543 in words is "three billion, one hundred sixty-one million, six hundred sixty-six thousand, five hundred forty-three".