3156664566 has 64 divisors (see below), whose sum is σ = 6990001920. Its totient is φ = 942399360.

The previous prime is 3156664547. The next prime is 3156664597. The reversal of 3156664566 is 6654666513.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1390080 + ... + 1392348.

It is an arithmetic number, because the mean of its divisors is an integer number (109218780).

Almost surely, 2^3156664566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3156664566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3495000960).

3156664566 is an abundant number, since it is smaller than the sum of its proper divisors (3833337354).

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

3156664566 is a wasteful number, since it uses less digits than its factorization.

3156664566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589.

The product of its digits is 2332800, while the sum is 48.

The square root of 3156664566 is about 56184.2021034383. The cubic root of 3156664566 is about 1466.9302974332.

The spelling of 3156664566 in words is "three billion, one hundred fifty-six million, six hundred sixty-four thousand, five hundred sixty-six".