2261541366 has 48 divisors (see below), whose sum is σ = 5606625024. Its totient is φ = 645391152.

The previous prime is 2261541361. The next prime is 2261541371. The reversal of 2261541366 is 6631451622.

2261541366 is a `hidden beast` number, since 2 + 2 + 615 + 4 + 1 + 36 + 6 = 666.

2261541366 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2261541361) and next prime (2261541371).

It is a super-2 number, since 2×2261541366² = 10229138700258291912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2261541366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261541361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101095 + ... + 121421.

It is an arithmetic number, because the mean of its divisors is an integer number (116804688).

Almost surely, 2^2261541366 is an apocalyptic number.

2261541366 is an abundant number, since it is smaller than the sum of its proper divisors (3345083658).

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

2261541366 is a wasteful number, since it uses less digits than its factorization.

2261541366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21225 (or 21222 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 2261541366 is about 47555.6659715748. The cubic root of 2261541366 is about 1312.6073908319.

Adding to 2261541366 its reverse (6631451622), we get a palindrome (8892992988).

The spelling of 2261541366 in words is "two billion, two hundred sixty-one million, five hundred forty-one thousand, three hundred sixty-six".