1066515442456 has 16 divisors (see below), whose sum is σ = 2053762845840. Its totient is φ = 518845350240.

The previous prime is 1066515442439. The next prime is 1066515442469. The reversal of 1066515442456 is 6542445156601.

It is a super-2 number, since 2×1066515442456² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1801546060 + ... + 1801546651.

It is an arithmetic number, because the mean of its divisors is an integer number (128360177865).

Almost surely, 2^{1066515442456} is an apocalyptic number.

It is an amenable number.

1066515442456 is a deficient number, since it is larger than the sum of its proper divisors (987247403384).

1066515442456 is a wasteful number, since it uses less digits than its factorization.

1066515442456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3603092754 (or 3603092750 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 49.

The spelling of 1066515442456 in words is "one trillion, sixty-six billion, five hundred fifteen million, four hundred forty-two thousand, four hundred fifty-six".