102556651643 has 2 divisors, whose sum is σ = 102556651644. Its totient is φ = 102556651642.

The previous prime is 102556651601. The next prime is 102556651649. The reversal of 102556651643 is 346156655201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102556651643 - 2⁶ = 102556651579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102556651594 and 102556651603.

It is not a weakly prime, because it can be changed into another prime (102556651649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51278325821 + 51278325822.

It is an arithmetic number, because the mean of its divisors is an integer number (51278325822).

Almost surely, 2^102556651643 is an apocalyptic number.

102556651643 is a deficient number, since it is larger than the sum of its proper divisors (1).

102556651643 is an equidigital number, since it uses as much as digits as its factorization.

102556651643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 102556651643 in words is "one hundred two billion, five hundred fifty-six million, six hundred fifty-one thousand, six hundred forty-three".