1111040660 has 48 divisors (see below), whose sum is σ = 2371783680. Its totient is φ = 437095680.

The previous prime is 1111040653. The next prime is 1111040683. The reversal of 1111040660 is 660401111.

It is a super-2 number, since 2×1111040660² = 2468822696346471200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 861296 + ... + 862584.

It is an arithmetic number, because the mean of its divisors is an integer number (49412160).

Almost surely, 2^1111040660 is an apocalyptic number.

1111040660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111040660 is an abundant number, since it is smaller than the sum of its proper divisors (1260743020).

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

1111040660 is a wasteful number, since it uses less digits than its factorization.

1111040660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976 (or 1974 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1111040660 is about 33332.2765499148. The cubic root of 1111040660 is about 1035.7222773903.

Adding to 1111040660 its reverse (660401111), we get a palindrome (1771441771).

The spelling of 1111040660 in words is "one billion, one hundred eleven million, forty thousand, six hundred sixty".