1111779669660 has 96 divisors (see below), whose sum is σ = 3487764897792. Its totient is φ = 262237950720.

The previous prime is 1111779669643. The next prime is 1111779669673. The reversal of 1111779669660 is 669669771111.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 1111779669594 and 1111779669603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22739292 + ... + 22788131.

It is an arithmetic number, because the mean of its divisors is an integer number (36330884352).

Almost surely, 2^{1111779669660} is an apocalyptic number.

1111779669660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111779669660 is an abundant number, since it is smaller than the sum of its proper divisors (2375985228132).

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

1111779669660 is a wasteful number, since it uses less digits than its factorization.

1111779669660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45527483 (or 45527481 counting only the distinct ones).

The product of its (nonzero) digits is 5143824, while the sum is 60.

It can be divided in two parts, 111 and 1779669660, that added together give a palindrome (1779669771).

The spelling of 1111779669660 in words is "one trillion, one hundred eleven billion, seven hundred seventy-nine million, six hundred sixty-nine thousand, six hundred sixty".