6661748314874 has 8 divisors (see below), whose sum is σ = 9992839713888. Its totient is φ = 3330801743580.

The previous prime is 6661748314873. The next prime is 6661748314883. The reversal of 6661748314874 is 4784138471666.

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

It is a super-2 number, since 2×6661748314874² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6661748314874.

It is not an unprimeable number, because it can be changed into a prime (6661748314873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36091862 + ... + 36275969.

It is an arithmetic number, because the mean of its divisors is an integer number (1249104964236).

Almost surely, 2^{6661748314874} is an apocalyptic number.

6661748314874 is a deficient number, since it is larger than the sum of its proper divisors (3331091399014).

6661748314874 is a wasteful number, since it uses less digits than its factorization.

6661748314874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72413860.

The product of its digits is 130056192, while the sum is 65.

The spelling of 6661748314874 in words is "six trillion, six hundred sixty-one billion, seven hundred forty-eight million, three hundred fourteen thousand, eight hundred seventy-four".