2266521636 has 24 divisors (see below), whose sum is σ = 5291846560. Its totient is φ = 755036352.

The previous prime is 2266521619. The next prime is 2266521641. The reversal of 2266521636 is 6361256622.

It is a super-2 number, since 2×2266521636² = 10274240652912232992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2266521594 and 2266521603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38521 + ... + 77568.

Almost surely, 2^2266521636 is an apocalyptic number.

It is an amenable number.

2266521636 is an abundant number, since it is smaller than the sum of its proper divisors (3025324924).

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

2266521636 is a wasteful number, since it uses less digits than its factorization.

2266521636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117723 (or 117721 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The square root of 2266521636 is about 47607.9997059318. Note that the first 3 decimals coincide. The cubic root of 2266521636 is about 1313.5702071022.

The spelling of 2266521636 in words is "two billion, two hundred sixty-six million, five hundred twenty-one thousand, six hundred thirty-six".