1066128070783 has 16 divisors (see below), whose sum is σ = 1079452846080. Its totient is φ = 1052853451776.

The previous prime is 1066128070741. The next prime is 1066128070789. The reversal of 1066128070783 is 3870708216601.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1066128070783 - 2¹³ = 1066128062591 is a prime.

It is a super-2 number, since 2×1066128070783² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066128070789) 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, 95895141 + ... + 95906257.

It is an arithmetic number, because the mean of its divisors is an integer number (67465802880).

Almost surely, 2^{1066128070783} is an apocalyptic number.

1066128070783 is a deficient number, since it is larger than the sum of its proper divisors (13324775297).

1066128070783 is a wasteful number, since it uses less digits than its factorization.

1066128070783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13266.

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 1066128070783 in words is "one trillion, sixty-six billion, one hundred twenty-eight million, seventy thousand, seven hundred eighty-three".