102166622441 has 4 divisors (see below), whose sum is σ = 110025593412. Its totient is φ = 94307651472.

The previous prime is 102166622431. The next prime is 102166622473. The reversal of 102166622441 is 144226661201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8053267600 + 94113354841 = 89740^2 + 306779^2 .

It is a cyclic number.

It is not a de Polignac number, because 102166622441 - 2⁶ = 102166622377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102166622401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3929485466 + ... + 3929485491.

It is an arithmetic number, because the mean of its divisors is an integer number (27506398353).

Almost surely, 2^102166622441 is an apocalyptic number.

It is an amenable number.

102166622441 is a deficient number, since it is larger than the sum of its proper divisors (7858970971).

102166622441 is an equidigital number, since it uses as much as digits as its factorization.

102166622441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7858970970.

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 102166622441 in words is "one hundred two billion, one hundred sixty-six million, six hundred twenty-two thousand, four hundred forty-one".