3220542566 has 4 divisors (see below), whose sum is σ = 4830813852. Its totient is φ = 1610271282.

The previous prime is 3220542551. The next prime is 3220542571. The reversal of 3220542566 is 6652450223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6652450223 = 8089 ⋅822407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805135640 + ... + 805135643.

It is an arithmetic number, because the mean of its divisors is an integer number (1207703463).

Almost surely, 2^3220542566 is an apocalyptic number.

3220542566 is a deficient number, since it is larger than the sum of its proper divisors (1610271286).

3220542566 is a wasteful number, since it uses less digits than its factorization.

3220542566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610271285.

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 3220542566 is about 56749.8243697723. The cubic root of 3220542566 is about 1476.7591866462.

Adding to 3220542566 its reverse (6652450223), we get a palindrome (9872992789).

The spelling of 3220542566 in words is "three billion, two hundred twenty million, five hundred forty-two thousand, five hundred sixty-six".