66606127552 has 28 divisors (see below), whose sum is σ = 132237775656. Its totient is φ = 33286373120.

The previous prime is 66606127531. The next prime is 66606127661. The reversal of 66606127552 is 25572160666.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131599 + ... + 387982.

It is an arithmetic number, because the mean of its divisors is an integer number (4722777702).

Almost surely, 2^66606127552 is an apocalyptic number.

It is an amenable number.

66606127552 is a deficient number, since it is larger than the sum of its proper divisors (65631648104).

66606127552 is a wasteful number, since it uses less digits than its factorization.

66606127552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521596 (or 521586 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 66606127552 in words is "sixty-six billion, six hundred six million, one hundred twenty-seven thousand, five hundred fifty-two".