66101430655 has 8 divisors (see below), whose sum is σ = 85423387392. Its totient is φ = 48813364128.

The previous prime is 66101430653. The next prime is 66101430713. The reversal of 66101430655 is 55603410166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66101430655 - 2¹ = 66101430653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66101430653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508472479 + ... + 508472608.

It is an arithmetic number, because the mean of its divisors is an integer number (10677923424).

Almost surely, 2^66101430655 is an apocalyptic number.

66101430655 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

66101430655 is a deficient number, since it is larger than the sum of its proper divisors (19321956737).

66101430655 is a wasteful number, since it uses less digits than its factorization.

66101430655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016945105.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 66101430655 in words is "sixty-six billion, one hundred one million, four hundred thirty thousand, six hundred fifty-five".