1128599616 has 28 divisors (see below), whose sum is σ = 2986086992. Its totient is φ = 376199808.

The previous prime is 1128599603. The next prime is 1128599651. The reversal of 1128599616 is 6169958211.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2938870 + ... + 2939253.

It is an arithmetic number, because the mean of its divisors is an integer number (106645964).

Almost surely, 2^1128599616 is an apocalyptic number.

1128599616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1128599616 is an abundant number, since it is smaller than the sum of its proper divisors (1857487376).

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

1128599616 is an equidigital number, since it uses as much as digits as its factorization.

1128599616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5878138 (or 5878128 counting only the distinct ones).

The product of its digits is 233280, while the sum is 48.

The square root of 1128599616 is about 33594.6367148091. The cubic root of 1128599616 is about 1041.1499902457.

The spelling of 1128599616 in words is "one billion, one hundred twenty-eight million, five hundred ninety-nine thousand, six hundred sixteen".