1000666066065 has 16 divisors (see below), whose sum is σ = 1601093314368. Its totient is φ = 533679365696.

The previous prime is 1000666066031. The next prime is 1000666066091. The reversal of 1000666066065 is 5606606660001.

1000666066065 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1000666066065 - 2¹⁰ = 1000666065041 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374242 + ... + 1463348.

It is an arithmetic number, because the mean of its divisors is an integer number (100068332148).

Almost surely, 2^{1000666066065} is an apocalyptic number.

1000666066065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1000666066065 is a deficient number, since it is larger than the sum of its proper divisors (600427248303).

1000666066065 is a wasteful number, since it uses less digits than its factorization.

1000666066065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150368.

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 1000666066065 in words is "one trillion, six hundred sixty-six million, sixty-six thousand, sixty-five".