2266520644 has 24 divisors (see below), whose sum is σ = 4039911008. Its totient is φ = 1112408640.

The previous prime is 2266520617. The next prime is 2266520647. The reversal of 2266520644 is 4460256622.

It is not an unprimeable number, because it can be changed into a prime (2266520647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43219 + ... + 80005.

Almost surely, 2^2266520644 is an apocalyptic number.

It is an amenable number.

2266520644 is a deficient number, since it is larger than the sum of its proper divisors (1773390364).

2266520644 is a wasteful number, since it uses less digits than its factorization.

2266520644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37075 (or 37073 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

The square root of 2266520644 is about 47607.9892875135. The cubic root of 2266520644 is about 1313.5700154632.

The spelling of 2266520644 in words is "two billion, two hundred sixty-six million, five hundred twenty thousand, six hundred forty-four".