1141661646 has 24 divisors (see below), whose sum is σ = 2533933584. Its totient is φ = 371271840.

The previous prime is 1141661641. The next prime is 1141661659. The reversal of 1141661646 is 6461661411.

1141661646 is a `hidden beast` number, since 1 + 1 + 4 + 1 + 6 + 6 + 1 + 646 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1141661646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141661641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 772746 + ... + 774221.

It is an arithmetic number, because the mean of its divisors is an integer number (105580566).

Almost surely, 2^1141661646 is an apocalyptic number.

1141661646 is an abundant number, since it is smaller than the sum of its proper divisors (1392271938).

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

1141661646 is a wasteful number, since it uses less digits than its factorization.

1141661646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547016 (or 1547013 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 1141661646 is about 33788.4839257401. The cubic root of 1141661646 is about 1045.1512325863.

The spelling of 1141661646 in words is "one billion, one hundred forty-one million, six hundred sixty-one thousand, six hundred forty-six".