101443666655 has 4 divisors (see below), whose sum is σ = 121732399992. Its totient is φ = 81154933320.

The previous prime is 101443666613. The next prime is 101443666661. The reversal of 101443666655 is 556666344101.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 101443666655 - 2¹⁸ = 101443404511 is a prime.

It is a Duffinian number.

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, 10144366661 + ... + 10144366670.

It is an arithmetic number, because the mean of its divisors is an integer number (30433099998).

Almost surely, 2^101443666655 is an apocalyptic number.

101443666655 is a deficient number, since it is larger than the sum of its proper divisors (20288733337).

101443666655 is an equidigital number, since it uses as much as digits as its factorization.

101443666655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20288733336.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 101443666655 in words is "one hundred one billion, four hundred forty-three million, six hundred sixty-six thousand, six hundred fifty-five".