66655434825244 has 24 divisors (see below), whose sum is σ = 127020338600400. Its totient is φ = 30484881262080.

The previous prime is 66655434825227. The next prime is 66655434825253. The reversal of 66655434825244 is 44252843455666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15121466677 + ... + 15121471084.

It is an arithmetic number, because the mean of its divisors is an integer number (5292514108350).

Almost surely, 2^{66655434825244} is an apocalyptic number.

It is an amenable number.

66655434825244 is a deficient number, since it is larger than the sum of its proper divisors (60364903775156).

66655434825244 is a wasteful number, since it uses less digits than its factorization.

66655434825244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30242937813 (or 30242937811 counting only the distinct ones).

The product of its digits is 663552000, while the sum is 64.

The spelling of 66655434825244 in words is "sixty-six trillion, six hundred fifty-five billion, four hundred thirty-four million, eight hundred twenty-five thousand, two hundred forty-four".