102020208918 has 16 divisors (see below), whose sum is σ = 204083421696. Its totient is φ = 33999569000.

The previous prime is 102020208893. The next prime is 102020208919. The reversal of 102020208918 is 819802020201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020208919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1760946 + ... + 1817957.

It is an arithmetic number, because the mean of its divisors is an integer number (12755213856).

Almost surely, 2^102020208918 is an apocalyptic number.

102020208918 is an abundant number, since it is smaller than the sum of its proper divisors (102063212778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102020208918 is a wasteful number, since it uses less digits than its factorization.

102020208918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583659.

The product of its (nonzero) digits is 4608, while the sum is 33.

The spelling of 102020208918 in words is "one hundred two billion, twenty million, two hundred eight thousand, nine hundred eighteen".