66106625166140 has 96 divisors (see below), whose sum is σ = 156010104746496. Its totient is φ = 23346262114560.

The previous prime is 66106625166067. The next prime is 66106625166181. The reversal of 66106625166140 is 4166152660166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133052219 + ... + 133548141.

It is an arithmetic number, because the mean of its divisors is an integer number (1625105257776).

Almost surely, 2^{66106625166140} is an apocalyptic number.

It is an amenable number.

66106625166140 is an abundant number, since it is smaller than the sum of its proper divisors (89903479580356).

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

66106625166140 is a wasteful number, since it uses less digits than its factorization.

66106625166140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518259 (or 518257 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 66106625166140 in words is "sixty-six trillion, one hundred six billion, six hundred twenty-five million, one hundred sixty-six thousand, one hundred forty".