654338132280 has 256 divisors, whose sum is σ = 2493522662400. Its totient is φ = 149514647040.

The previous prime is 654338132263. The next prime is 654338132291. The reversal of 654338132280 is 82231833456.

654338132280 is a `hidden beast` number, since 6 + 5 + 4 + 338 + 1 + 32 + 280 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26757739 + ... + 26782181.

It is an arithmetic number, because the mean of its divisors is an integer number (9740322900).

Almost surely, 2^654338132280 is an apocalyptic number.

654338132280 is a gapful number since it is divisible by the number (60) 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 654338132280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1246761331200).

654338132280 is an abundant number, since it is smaller than the sum of its proper divisors (1839184530120).

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

654338132280 is a wasteful number, since it uses less digits than its factorization.

654338132280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28011 (or 28001 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 654338132280 in words is "six hundred fifty-four billion, three hundred thirty-eight million, one hundred thirty-two thousand, two hundred eighty".