1122656880 has 80 divisors (see below), whose sum is σ = 3684969504. Its totient is φ = 281763840.

The previous prime is 1122656839. The next prime is 1122656881. The reversal of 1122656880 is 886562211.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1122656880² = 2520716940422668800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122656881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133501 + ... + 141660.

Almost surely, 2^1122656880 is an apocalyptic number.

1122656880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122656880 is an abundant number, since it is smaller than the sum of its proper divisors (2562312624).

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

1122656880 is a wasteful number, since it uses less digits than its factorization.

1122656880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275194 (or 275188 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 1122656880 is about 33506.0722854828. The cubic root of 1122656880 is about 1039.3193524650.

The spelling of 1122656880 in words is "one billion, one hundred twenty-two million, six hundred fifty-six thousand, eight hundred eighty".