2285595721920 has 1344 divisors, whose sum is σ = 9357276119040. Its totient is φ = 460863406080.

The previous prime is 2285595721909. The next prime is 2285595721921. The reversal of 2285595721920 is 291275955822.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (2285595721921) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4936491609 + ... + 4936492071.

Almost surely, 2^{2285595721920} is an apocalyptic number.

2285595721920 is a gapful number since it is divisible by the number (20) 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 2285595721920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4678638059520).

2285595721920 is an abundant number, since it is smaller than the sum of its proper divisors (7071680397120).

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

2285595721920 is a wasteful number, since it uses less digits than its factorization.

2285595721920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 57.

The spelling of 2285595721920 in words is "two trillion, two hundred eighty-five billion, five hundred ninety-five million, seven hundred twenty-one thousand, nine hundred twenty".