101665051661055 has 8 divisors (see below), whose sum is σ = 162664082657712. Its totient is φ = 54221360885888.

The previous prime is 101665051660969. The next prime is 101665051661101. The reversal of 101665051661055 is 550166150566101.

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 101665051661055 - 2²⁵ = 101665018106623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101665051660995 and 101665051661013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3388835055354 + ... + 3388835055383.

It is an arithmetic number, because the mean of its divisors is an integer number (20333010332214).

Almost surely, 2^{101665051661055} is an apocalyptic number.

101665051661055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

101665051661055 is a deficient number, since it is larger than the sum of its proper divisors (60999030996657).

101665051661055 is an equidigital number, since it uses as much as digits as its factorization.

101665051661055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6777670110745.

The product of its (nonzero) digits is 810000, while the sum is 48.

The spelling of 101665051661055 in words is "one hundred one trillion, six hundred sixty-five billion, fifty-one million, six hundred sixty-one thousand, fifty-five".