2255801780160 has 448 divisors, whose sum is σ = 8436731351040. Its totient is φ = 566406328320.

The previous prime is 2255801780159. The next prime is 2255801780161. The reversal of 2255801780160 is 610871085522.

2255801780160 is a `hidden beast` number, since 2 + 2 + 5 + 580 + 1 + 7 + 8 + 0 + 1 + 60 = 666.

It is an interprime number because it is at equal distance from previous prime (2255801780159) and next prime (2255801780161).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2255801780161) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9796267 + ... + 10023893.

Almost surely, 2^{2255801780160} is an apocalyptic number.

2255801780160 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 2255801780160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4218365675520).

2255801780160 is an abundant number, since it is smaller than the sum of its proper divisors (6180929570880).

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

2255801780160 is a wasteful number, since it uses less digits than its factorization.

2255801780160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227721 (or 227705 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 45.

The spelling of 2255801780160 in words is "two trillion, two hundred fifty-five billion, eight hundred one million, seven hundred eighty thousand, one hundred sixty".