101866453841 has 2 divisors, whose sum is σ = 101866453842. Its totient is φ = 101866453840.

The previous prime is 101866453823. The next prime is 101866453849. The reversal of 101866453841 is 148354668101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51493140241 + 50373313600 = 226921^2 + 224440^2 .

It is a cyclic number.

It is not a de Polignac number, because 101866453841 - 2¹⁸ = 101866191697 is a prime.

It is not a weakly prime, because it can be changed into another prime (101866453849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50933226920 + 50933226921.

It is an arithmetic number, because the mean of its divisors is an integer number (50933226921).

Almost surely, 2^101866453841 is an apocalyptic number.

It is an amenable number.

101866453841 is a deficient number, since it is larger than the sum of its proper divisors (1).

101866453841 is an equidigital number, since it uses as much as digits as its factorization.

101866453841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 101866453841 in words is "one hundred one billion, eight hundred sixty-six million, four hundred fifty-three thousand, eight hundred forty-one".