2265500664 has 192 divisors, whose sum is σ = 7313779200. Its totient is φ = 643572864.

The previous prime is 2265500659. The next prime is 2265500689. The reversal of 2265500664 is 4660055622.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3115869 + ... + 3116595.

It is an arithmetic number, because the mean of its divisors is an integer number (38092600).

Almost surely, 2^2265500664 is an apocalyptic number.

2265500664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2265500664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3656889600).

2265500664 is an abundant number, since it is smaller than the sum of its proper divisors (5048278536).

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

2265500664 is a wasteful number, since it uses less digits than its factorization.

2265500664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 2265500664 is about 47597.2758043987. The cubic root of 2265500664 is about 1313.3729415650.

The spelling of 2265500664 in words is "two billion, two hundred sixty-five million, five hundred thousand, six hundred sixty-four".