20216670352 has 40 divisors (see below), whose sum is σ = 40242567416. Its totient is φ = 9831684096.

The previous prime is 20216670343. The next prime is 20216670373. The reversal of 20216670352 is 25307661202.

It can be written as a sum of positive squares in 4 ways, for example, as 57214096 + 20159456256 = 7564^2 + 141984^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2753278 + ... + 2760610.

Almost surely, 2^20216670352 is an apocalyptic number.

It is an amenable number.

20216670352 is a deficient number, since it is larger than the sum of its proper divisors (20025897064).

20216670352 is a wasteful number, since it uses less digits than its factorization.

20216670352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12035 (or 12029 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 20216670352 in words is "twenty billion, two hundred sixteen million, six hundred seventy thousand, three hundred fifty-two".