12355780245780 has 24 divisors (see below), whose sum is σ = 34596184688352. Its totient is φ = 3294874732192.

The previous prime is 12355780245769. The next prime is 12355780245799. The reversal of 12355780245780 is 8754208755321.

It is a self number, because there is not a number n which added to its sum of digits gives 12355780245780.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102964835322 + ... + 102964835441.

It is an arithmetic number, because the mean of its divisors is an integer number (1441507695348).

Almost surely, 2^{12355780245780} is an apocalyptic number.

12355780245780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12355780245780 is an abundant number, since it is smaller than the sum of its proper divisors (22240404442572).

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

12355780245780 is a wasteful number, since it uses less digits than its factorization.

12355780245780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205929670775 (or 205929670773 counting only the distinct ones).

The product of its (nonzero) digits is 18816000, while the sum is 57.

The spelling of 12355780245780 in words is "twelve trillion, three hundred fifty-five billion, seven hundred eighty million, two hundred forty-five thousand, seven hundred eighty".