102169891071 has 48 divisors (see below), whose sum is σ = 157025606400. Its totient is φ = 63875661696.

The previous prime is 102169891063. The next prime is 102169891093. The reversal of 102169891071 is 170198961201.

It is a happy number.

It is not a de Polignac number, because 102169891071 - 2³ = 102169891063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102169891051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4617691 + ... + 4639763.

It is an arithmetic number, because the mean of its divisors is an integer number (3271366800).

Almost surely, 2^102169891071 is an apocalyptic number.

102169891071 is a deficient number, since it is larger than the sum of its proper divisors (54855715329).

102169891071 is a wasteful number, since it uses less digits than its factorization.

102169891071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22540 (or 22537 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 45.

The spelling of 102169891071 in words is "one hundred two billion, one hundred sixty-nine million, eight hundred ninety-one thousand, seventy-one".