6656552125212 has 48 divisors (see below), whose sum is σ = 17134332364800. Its totient is φ = 1994472543360.

The previous prime is 6656552125183. The next prime is 6656552125213. The reversal of 6656552125212 is 2125212556566.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656552125213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283294012 + ... + 283317507.

It is an arithmetic number, because the mean of its divisors is an integer number (356965257600).

Almost surely, 2^{6656552125212} is an apocalyptic number.

It is an amenable number.

6656552125212 is an abundant number, since it is smaller than the sum of its proper divisors (10477780239588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6656552125212 is a wasteful number, since it uses less digits than its factorization.

6656552125212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566611626 (or 566611624 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 48.

The spelling of 6656552125212 in words is "six trillion, six hundred fifty-six billion, five hundred fifty-two million, one hundred twenty-five thousand, two hundred twelve".