20037171216 has 80 divisors (see below), whose sum is σ = 53459524800. Its totient is φ = 6462134784.

The previous prime is 20037171199. The next prime is 20037171223. The reversal of 20037171216 is 61217173002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286390 + ... + 349418.

It is an arithmetic number, because the mean of its divisors is an integer number (668244060).

Almost surely, 2^20037171216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20037171216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26729762400).

20037171216 is an abundant number, since it is smaller than the sum of its proper divisors (33422353584).

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

20037171216 is a wasteful number, since it uses less digits than its factorization.

20037171216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63256 (or 63250 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The spelling of 20037171216 in words is "twenty billion, thirty-seven million, one hundred seventy-one thousand, two hundred sixteen".