6661466232554 has 16 divisors (see below), whose sum is σ = 11524423891200. Its totient is φ = 2828722226544.

The previous prime is 6661466232527. The next prime is 6661466232557. The reversal of 6661466232554 is 4552326641666.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6661466232554.

It is not an unprimeable number, because it can be changed into a prime (6661466232557) 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, 2182654514 + ... + 2182657565.

It is an arithmetic number, because the mean of its divisors is an integer number (720276493200).

Almost surely, 2^{6661466232554} is an apocalyptic number.

6661466232554 is a deficient number, since it is larger than the sum of its proper divisors (4862957658646).

6661466232554 is a wasteful number, since it uses less digits than its factorization.

6661466232554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4365312197.

The product of its digits is 37324800, while the sum is 56.

The spelling of 6661466232554 in words is "six trillion, six hundred sixty-one billion, four hundred sixty-six million, two hundred thirty-two thousand, five hundred fifty-four".