1330166603666 has 16 divisors (see below), whose sum is σ = 2149106388000. Its totient is φ = 615425918688.

The previous prime is 1330166603663. The next prime is 1330166603669. The reversal of 1330166603666 is 6663066610331.

It is an interprime number because it is at equal distance from previous prime (1330166603663) and next prime (1330166603669).

It is a self number, because there is not a number n which added to its sum of digits gives 1330166603666.

It is not an unprimeable number, because it can be changed into a prime (1330166603663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407026091 + ... + 407029358.

It is an arithmetic number, because the mean of its divisors is an integer number (134319149250).

Almost surely, 2^{1330166603666} is an apocalyptic number.

1330166603666 is a deficient number, since it is larger than the sum of its proper divisors (818939784334).

1330166603666 is a wasteful number, since it uses less digits than its factorization.

1330166603666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814055513.

The product of its (nonzero) digits is 1259712, while the sum is 47.

The spelling of 1330166603666 in words is "one trillion, three hundred thirty billion, one hundred sixty-six million, six hundred three thousand, six hundred sixty-six".