66350550553627 has 16 divisors (see below), whose sum is σ = 69161729020672. Its totient is φ = 63592970490720.

The previous prime is 66350550553591. The next prime is 66350550553633. The reversal of 66350550553627 is 72635505505366.

It is a cyclic number.

It is not a de Polignac number, because 66350550553627 - 2²⁷ = 66350416335899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66350550553657) 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, 372283978 + ... + 372462160.

It is an arithmetic number, because the mean of its divisors is an integer number (4322608063792).

Almost surely, 2^{66350550553627} is an apocalyptic number.

66350550553627 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

66350550553627 is a deficient number, since it is larger than the sum of its proper divisors (2811178467045).

66350550553627 is a wasteful number, since it uses less digits than its factorization.

66350550553627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328498.

The product of its (nonzero) digits is 85050000, while the sum is 58.

The spelling of 66350550553627 in words is "sixty-six trillion, three hundred fifty billion, five hundred fifty million, five hundred fifty-three thousand, six hundred twenty-seven".