7146388336666 has 16 divisors (see below), whose sum is σ = 10746980823240. Its totient is φ = 3564062061120.

The previous prime is 7146388336597. The next prime is 7146388336669. The reversal of 7146388336666 is 6666338836417.

It can be written as a sum of positive squares in 4 ways, for example, as 7059006020641 + 87382316025 = 2656879^2 + 295605^2 .

It is not an unprimeable number, because it can be changed into a prime (7146388336669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23463040 + ... + 23765668.

Almost surely, 2^{7146388336666} is an apocalyptic number.

7146388336666 is a deficient number, since it is larger than the sum of its proper divisors (3600592486574).

7146388336666 is a wasteful number, since it uses less digits than its factorization.

7146388336666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332769.

The product of its digits is 376233984, while the sum is 67.

The spelling of 7146388336666 in words is "seven trillion, one hundred forty-six billion, three hundred eighty-eight million, three hundred thirty-six thousand, six hundred sixty-six".