128348166864470 has 16 divisors (see below), whose sum is σ = 264030514692768. Its totient is φ = 44005085782080.

The previous prime is 128348166864469. The next prime is 128348166864479. The reversal of 128348166864470 is 74468661843821.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 128348166864470.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128348166864479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 916772620391 + ... + 916772620530.

It is an arithmetic number, because the mean of its divisors is an integer number (16501907168298).

Almost surely, 2^{128348166864470} is an apocalyptic number.

128348166864470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128348166864470 is an abundant number, since it is smaller than the sum of its proper divisors (135682347828298).

128348166864470 is a wasteful number, since it uses less digits than its factorization.

128348166864470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833545240935.

The product of its (nonzero) digits is 297271296, while the sum is 68.

The spelling of 128348166864470 in words is "one hundred twenty-eight trillion, three hundred forty-eight billion, one hundred sixty-six million, eight hundred sixty-four thousand, four hundred seventy".