100364439661 has 2 divisors, whose sum is σ = 100364439662. Its totient is φ = 100364439660.

The previous prime is 100364439653. The next prime is 100364439697. The reversal of 100364439661 is 166934463001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54854324100 + 45510115561 = 234210^2 + 213331^2 .

It is a cyclic number.

It is not a de Polignac number, because 100364439661 - 2³ = 100364439653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100364439611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50182219830 + 50182219831.

It is an arithmetic number, because the mean of its divisors is an integer number (50182219831).

Almost surely, 2^100364439661 is an apocalyptic number.

It is an amenable number.

100364439661 is a deficient number, since it is larger than the sum of its proper divisors (1).

100364439661 is an equidigital number, since it uses as much as digits as its factorization.

100364439661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 43.

The spelling of 100364439661 in words is "one hundred billion, three hundred sixty-four million, four hundred thirty-nine thousand, six hundred sixty-one".