1121644662 has 32 divisors (see below), whose sum is σ = 2285986560. Its totient is φ = 366832800.

The previous prime is 1121644639. The next prime is 1121644669. The reversal of 1121644662 is 2664461211.

1121644662 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1121644662³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121644669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59037 + ... + 75687.

It is an arithmetic number, because the mean of its divisors is an integer number (71437080).

Almost surely, 2^1121644662 is an apocalyptic number.

1121644662 is an abundant number, since it is smaller than the sum of its proper divisors (1164341898).

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

1121644662 is a wasteful number, since it uses less digits than its factorization.

1121644662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16868.

The product of its digits is 13824, while the sum is 33.

The square root of 1121644662 is about 33490.9638858006. The cubic root of 1121644662 is about 1039.0068990017.

The spelling of 1121644662 in words is "one billion, one hundred twenty-one million, six hundred forty-four thousand, six hundred sixty-two".