102099666618943 has 12 divisors (see below), whose sum is σ = 118928483176048. Its totient is φ = 85862792396160.

The previous prime is 102099666618853. The next prime is 102099666618953. The reversal of 102099666618943 is 349816666990201.

It is not a de Polignac number, because 102099666618943 - 2⁹ = 102099666618431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102099666618953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2596218618 + ... + 2596257943.

Almost surely, 2^{102099666618943} is an apocalyptic number.

102099666618943 is a deficient number, since it is larger than the sum of its proper divisors (16828816557105).

102099666618943 is an frugal number, since it uses more digits than its factorization.

102099666618943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5192476674 (or 5192476621 counting only the distinct ones).

The product of its (nonzero) digits is 181398528, while the sum is 70.

The spelling of 102099666618943 in words is "one hundred two trillion, ninety-nine billion, six hundred sixty-six million, six hundred eighteen thousand, nine hundred forty-three".