20161705002 has 16 divisors (see below), whose sum is σ = 41413232352. Its totient is φ = 6538931280.

The previous prime is 20161704991. The next prime is 20161705021. The reversal of 20161705002 is 20050716102.

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, 45409024 + ... + 45409467.

It is an arithmetic number, because the mean of its divisors is an integer number (2588327022).

Almost surely, 2^20161705002 is an apocalyptic number.

20161705002 is an abundant number, since it is smaller than the sum of its proper divisors (21251527350).

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

20161705002 is a wasteful number, since it uses less digits than its factorization.

20161705002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90818533.

The product of its (nonzero) digits is 840, while the sum is 24.

The spelling of 20161705002 in words is "twenty billion, one hundred sixty-one million, seven hundred five thousand, two".