20170200743672 has 64 divisors (see below), whose sum is σ = 43384833930240. Its totient is φ = 8611781846400.

The previous prime is 20170200743663. The next prime is 20170200743677. The reversal of 20170200743672 is 27634700207102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20170200743677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218290922 + ... + 218383302.

It is an arithmetic number, because the mean of its divisors is an integer number (677888030160).

Almost surely, 2^{20170200743672} is an apocalyptic number.

It is an amenable number.

20170200743672 is an abundant number, since it is smaller than the sum of its proper divisors (23214633186568).

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

20170200743672 is a wasteful number, since it uses less digits than its factorization.

20170200743672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107052 (or 107048 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 41.

The spelling of 20170200743672 in words is "twenty trillion, one hundred seventy billion, two hundred million, seven hundred forty-three thousand, six hundred seventy-two".