1120666656 has 192 divisors, whose sum is σ = 3258444672. Its totient is φ = 335757312.

The previous prime is 1120666621. The next prime is 1120666663. The reversal of 1120666656 is 6566660211.

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, 4045590 + ... + 4045866.

It is an arithmetic number, because the mean of its divisors is an integer number (16971066).

Almost surely, 2^1120666656 is an apocalyptic number.

1120666656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1120666656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1629222336).

1120666656 is an abundant number, since it is smaller than the sum of its proper divisors (2137778016).

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

1120666656 is a wasteful number, since it uses less digits than its factorization.

1120666656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 1120666656 is about 33476.3596587204. The cubic root of 1120666656 is about 1038.7048275583.

The spelling of 1120666656 in words is "one billion, one hundred twenty million, six hundred sixty-six thousand, six hundred fifty-six".