1066128070784 has 32 divisors (see below), whose sum is σ = 2427345163200. Its totient is φ = 456912029952.

The previous prime is 1066128070741. The next prime is 1066128070789. The reversal of 1066128070784 is 4870708216601.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1066128070784² (a number of 25 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 594936644 + ... + 594938435.

It is an arithmetic number, because the mean of its divisors is an integer number (75854536350).

Almost surely, 2^{1066128070784} is an apocalyptic number.

1066128070784 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1066128070784 is an abundant number, since it is smaller than the sum of its proper divisors (1361217092416).

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

1066128070784 is an equidigital number, since it uses as much as digits as its factorization.

1066128070784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189875100 (or 1189875088 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 50.

The spelling of 1066128070784 in words is "one trillion, sixty-six billion, one hundred twenty-eight million, seventy thousand, seven hundred eighty-four".