1113555777780 has 24 divisors (see below), whose sum is σ = 3117956177952. Its totient is φ = 296948207392.

The previous prime is 1113555777767. The next prime is 1113555777787. The reversal of 1113555777780 is 877775553111.

It is a self number, because there is not a number n which added to its sum of digits gives 1113555777780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113555777787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9279631422 + ... + 9279631541.

It is an arithmetic number, because the mean of its divisors is an integer number (129914840748).

Almost surely, 2^{1113555777780} is an apocalyptic number.

1113555777780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113555777780 is an abundant number, since it is smaller than the sum of its proper divisors (2004400400172).

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

1113555777780 is a wasteful number, since it uses less digits than its factorization.

1113555777780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18559262975 (or 18559262973 counting only the distinct ones).

The product of its (nonzero) digits is 7203000, while the sum is 57.

The spelling of 1113555777780 in words is "one trillion, one hundred thirteen billion, five hundred fifty-five million, seven hundred seventy-seven thousand, seven hundred eighty".