6660204720254 has 8 divisors (see below), whose sum is σ = 10051597308360. Its totient is φ = 3309672284136.

The previous prime is 6660204720251. The next prime is 6660204720263. The reversal of 6660204720254 is 4520274020666.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660204720251) 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, 10215037589 + ... + 10215038240.

It is an arithmetic number, because the mean of its divisors is an integer number (1256449663545).

Almost surely, 2^{6660204720254} is an apocalyptic number.

6660204720254 is a deficient number, since it is larger than the sum of its proper divisors (3391392588106).

6660204720254 is a wasteful number, since it uses less digits than its factorization.

6660204720254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20430075994.

The product of its (nonzero) digits is 967680, while the sum is 44.

The spelling of 6660204720254 in words is "six trillion, six hundred sixty billion, two hundred four million, seven hundred twenty thousand, two hundred fifty-four".