6660651056541 has 8 divisors (see below), whose sum is σ = 8885131582560. Its totient is φ = 4438302284112.

The previous prime is 6660651056503. The next prime is 6660651056561. The reversal of 6660651056541 is 1456501560666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6660651056541 - 2¹⁸ = 6660650794397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660651056561) 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, 532931106 + ... + 532943603.

It is an arithmetic number, because the mean of its divisors is an integer number (1110641447820).

Almost surely, 2^{6660651056541} is an apocalyptic number.

It is an amenable number.

6660651056541 is a deficient number, since it is larger than the sum of its proper divisors (2224480526019).

6660651056541 is a wasteful number, since it uses less digits than its factorization.

6660651056541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065876795.

The product of its (nonzero) digits is 3888000, while the sum is 51.

The spelling of 6660651056541 in words is "six trillion, six hundred sixty billion, six hundred fifty-one million, fifty-six thousand, five hundred forty-one".