20168502002 has 16 divisors (see below), whose sum is σ = 33078196800. Its totient is φ = 9146613840.

The previous prime is 20168501989. The next prime is 20168502049. The reversal of 20168502002 is 20020586102.

It is an unprimeable number.

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, 1034477 + ... + 1053792.

It is an arithmetic number, because the mean of its divisors is an integer number (2067387300).

Almost surely, 2^20168502002 is an apocalyptic number.

20168502002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20168502002 is a deficient number, since it is larger than the sum of its proper divisors (12909694798).

20168502002 is a wasteful number, since it uses less digits than its factorization.

20168502002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088721.

The product of its (nonzero) digits is 1920, while the sum is 26.

The spelling of 20168502002 in words is "twenty billion, one hundred sixty-eight million, five hundred two thousand, two".