2205925733780 has 144 divisors (see below), whose sum is σ = 4841738858880. Its totient is φ = 843763554816.

The previous prime is 2205925733741. The next prime is 2205925733789. The reversal of 2205925733780 is 873375295022.

It is a super-2 number, since 2×2205925733780² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205925733789) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1794894206 + ... + 1794895434.

It is an arithmetic number, because the mean of its divisors is an integer number (33623186520).

Almost surely, 2^{2205925733780} is an apocalyptic number.

2205925733780 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 2205925733780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2420869429440).

2205925733780 is an abundant number, since it is smaller than the sum of its proper divisors (2635813125100).

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

2205925733780 is a wasteful number, since it uses less digits than its factorization.

2205925733780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130 (or 2075 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 53.

The spelling of 2205925733780 in words is "two trillion, two hundred five billion, nine hundred twenty-five million, seven hundred thirty-three thousand, seven hundred eighty".