2158448226480 has 480 divisors, whose sum is σ = 8925699968640. Its totient is φ = 455198883840.

The previous prime is 2158448226479. The next prime is 2158448226509. The reversal of 2158448226480 is 846228448512.

2158448226480 is a `hidden beast` number, since 2 + 1 + 5 + 84 + 4 + 82 + 2 + 6 + 480 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 171721636 + ... + 171734204.

It is an arithmetic number, because the mean of its divisors is an integer number (18595208268).

Almost surely, 2^{2158448226480} is an apocalyptic number.

2158448226480 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 2158448226480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4462849984320).

2158448226480 is an abundant number, since it is smaller than the sum of its proper divisors (6767251742160).

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

2158448226480 is a wasteful number, since it uses less digits than its factorization.

2158448226480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15229 (or 15220 counting only the distinct ones).

The product of its (nonzero) digits is 7864320, while the sum is 54.

The spelling of 2158448226480 in words is "two trillion, one hundred fifty-eight billion, four hundred forty-eight million, two hundred twenty-six thousand, four hundred eighty".