6660552512725 has 12 divisors (see below), whose sum is σ = 8260001951040. Its totient is φ = 5327850503600.

The previous prime is 6660552512723. The next prime is 6660552512729. The reversal of 6660552512725 is 5272152550666.

It is not a de Polignac number, because 6660552512725 - 2¹ = 6660552512723 is a prime.

It is a super-2 number, since 2×6660552512725² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660552512723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14557885 + ... + 15008434.

It is an arithmetic number, because the mean of its divisors is an integer number (688333495920).

Almost surely, 2^{6660552512725} is an apocalyptic number.

It is an amenable number.

6660552512725 is a deficient number, since it is larger than the sum of its proper divisors (1599449438315).

6660552512725 is a wasteful number, since it uses less digits than its factorization.

6660552512725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29575340 (or 29575335 counting only the distinct ones).

The product of its (nonzero) digits is 7560000, while the sum is 52.

The spelling of 6660552512725 in words is "six trillion, six hundred sixty billion, five hundred fifty-two million, five hundred twelve thousand, seven hundred twenty-five".