1120553663 has 4 divisors (see below), whose sum is σ = 1124719560. Its totient is φ = 1116387768.

The previous prime is 1120553659. The next prime is 1120553689. The reversal of 1120553663 is 3663550211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1120553663 - 2² = 1120553659 is a prime.

It is a super-4 number, since 4×1120553663⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120553263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2082545 + ... + 2083082.

It is an arithmetic number, because the mean of its divisors is an integer number (281179890).

Almost surely, 2^1120553663 is an apocalyptic number.

1120553663 is a deficient number, since it is larger than the sum of its proper divisors (4165897).

1120553663 is an equidigital number, since it uses as much as digits as its factorization.

1120553663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4165896.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 1120553663 is about 33474.6719625451. The cubic root of 1120553663 is about 1038.6699166955.

The spelling of 1120553663 in words is "one billion, one hundred twenty million, five hundred fifty-three thousand, six hundred sixty-three".