1121665050 has 96 divisors (see below), whose sum is σ = 3371837760. Its totient is φ = 271915200.

The previous prime is 1121665037. The next prime is 1121665067. The reversal of 1121665050 is 505661211.

It is a happy number.

1121665050 is a `hidden beast` number, since 1 + 1 + 2 + 1 + 6 + 650 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22917 + ... + 52616.

It is an arithmetic number, because the mean of its divisors is an integer number (35123310).

Almost surely, 2^1121665050 is an apocalyptic number.

1121665050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121665050 is an abundant number, since it is smaller than the sum of its proper divisors (2250172710).

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

1121665050 is a wasteful number, since it uses less digits than its factorization.

1121665050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75565 (or 75554 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 1121665050 is about 33491.2682650269. The cubic root of 1121665050 is about 1039.0131942647.

The spelling of 1121665050 in words is "one billion, one hundred twenty-one million, six hundred sixty-five thousand, fifty".