2261554216 has 8 divisors (see below), whose sum is σ = 4240414170. Its totient is φ = 1130777104.

The previous prime is 2261554187. The next prime is 2261554261. The reversal of 2261554216 is 6124551622.

It can be written as a sum of positive squares in only one way, i.e., 2251882116 + 9672100 = 47454^2 + 3110^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2261554216² = 10229254943814749312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141347131 + ... + 141347146.

Almost surely, 2^2261554216 is an apocalyptic number.

It is an amenable number.

2261554216 is a deficient number, since it is larger than the sum of its proper divisors (1978859954).

2261554216 is a wasteful number, since it uses less digits than its factorization.

2261554216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282694283 (or 282694279 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 2261554216 is about 47555.8010762094. The cubic root of 2261554216 is about 1312.6098768905.

The spelling of 2261554216 in words is "two billion, two hundred sixty-one million, five hundred fifty-four thousand, two hundred sixteen".