1043666406056 has 8 divisors (see below), whose sum is σ = 1956874511370. Its totient is φ = 521833203024.

The previous prime is 1043666406047. The next prime is 1043666406071. The reversal of 1043666406056 is 6506046663401.

It can be written as a sum of positive squares in only one way, i.e., 863579904100 + 180086501956 = 929290^2 + 424366^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1043666406056.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65229150371 + ... + 65229150386.

Almost surely, 2^{1043666406056} is an apocalyptic number.

It is an amenable number.

1043666406056 is a deficient number, since it is larger than the sum of its proper divisors (913208105314).

1043666406056 is a wasteful number, since it uses less digits than its factorization.

1043666406056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130458300763 (or 130458300759 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 1043666406056 in words is "one trillion, forty-three billion, six hundred sixty-six million, four hundred six thousand, fifty-six".