1147874145966 has 32 divisors (see below), whose sum is σ = 2555708805120. Its totient is φ = 381893109912.

The previous prime is 1147874145953. The next prime is 1147874145989. The reversal of 1147874145966 is 6695414787411.

It is a happy number.

1147874145966 is a `hidden beast` number, since 1 + 1 + 4 + 7 + 87 + 41 + 459 + 66 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20293870 + ... + 20350353.

It is an arithmetic number, because the mean of its divisors is an integer number (79865900160).

Almost surely, 2^{1147874145966} is an apocalyptic number.

1147874145966 is an abundant number, since it is smaller than the sum of its proper divisors (1407834659154).

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

1147874145966 is a wasteful number, since it uses less digits than its factorization.

1147874145966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40644757 (or 40644751 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 63.

The spelling of 1147874145966 in words is "one trillion, one hundred forty-seven billion, eight hundred seventy-four million, one hundred forty-five thousand, nine hundred sixty-six".