2566214636 has 12 divisors (see below), whose sum is σ = 4502918112. Its totient is φ = 1279666608.

The previous prime is 2566214621. The next prime is 2566214663. The reversal of 2566214636 is 6364126652.

It is a happy number.

It is a super-2 number, since 2×2566214636² = 13170915116041224992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2566214593 and 2566214602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 858500 + ... + 861483.

It is an arithmetic number, because the mean of its divisors is an integer number (375243176).

Almost surely, 2^2566214636 is an apocalyptic number.

It is an amenable number.

2566214636 is a deficient number, since it is larger than the sum of its proper divisors (1936703476).

2566214636 is a wasteful number, since it uses less digits than its factorization.

2566214636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720360 (or 1720358 counting only the distinct ones).

The product of its digits is 311040, while the sum is 41.

The square root of 2566214636 is about 50657.8191003126. The cubic root of 2566214636 is about 1369.0868292595.

The spelling of 2566214636 in words is "two billion, five hundred sixty-six million, two hundred fourteen thousand, six hundred thirty-six".