1975555484655 has 16 divisors (see below), whose sum is σ = 3181821817344. Its totient is φ = 1046651911200.

The previous prime is 1975555484603. The next prime is 1975555484657. The reversal of 1975555484655 is 5564845555791.

It is not a de Polignac number, because 1975555484655 - 2²⁸ = 1975287049199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1975555484655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1975555484657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436102699 + ... + 436107228.

It is an arithmetic number, because the mean of its divisors is an integer number (198863863584).

Almost surely, 2^{1975555484655} is an apocalyptic number.

1975555484655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1975555484655 is a deficient number, since it is larger than the sum of its proper divisors (1206266332689).

1975555484655 is a wasteful number, since it uses less digits than its factorization.

1975555484655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872210086.

The product of its digits is 756000000, while the sum is 69.

The spelling of 1975555484655 in words is "one trillion, nine hundred seventy-five billion, five hundred fifty-five million, four hundred eighty-four thousand, six hundred fifty-five".