100536661943 has 2 divisors, whose sum is σ = 100536661944. Its totient is φ = 100536661942.

The previous prime is 100536661919. The next prime is 100536661993. The reversal of 100536661943 is 349166635001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100536661943 - 2¹² = 100536657847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100536661894 and 100536661903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100536661903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50268330971 + 50268330972.

It is an arithmetic number, because the mean of its divisors is an integer number (50268330972).

Almost surely, 2^100536661943 is an apocalyptic number.

100536661943 is a deficient number, since it is larger than the sum of its proper divisors (1).

100536661943 is an equidigital number, since it uses as much as digits as its factorization.

100536661943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 44.

The spelling of 100536661943 in words is "one hundred billion, five hundred thirty-six million, six hundred sixty-one thousand, nine hundred forty-three".