2566146556 has 6 divisors (see below), whose sum is σ = 4490756480. Its totient is φ = 1283073276.

The previous prime is 2566146553. The next prime is 2566146563. The reversal of 2566146556 is 6556416652.

It is a super-2 number, since 2×2566146556² = 13170216293741322272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566146553) by changing a digit.

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 as a sum of consecutive naturals, namely, 320768316 + ... + 320768323.

Almost surely, 2^2566146556 is an apocalyptic number.

It is an amenable number.

2566146556 is a deficient number, since it is larger than the sum of its proper divisors (1924609924).

2566146556 is a wasteful number, since it uses less digits than its factorization.

2566146556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641536643 (or 641536641 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 46.

The square root of 2566146556 is about 50657.1471364111. The cubic root of 2566146556 is about 1369.0747221590.

The spelling of 2566146556 in words is "two billion, five hundred sixty-six million, one hundred forty-six thousand, five hundred fifty-six".