20117030002672 has 80 divisors (see below), whose sum is σ = 40008118155840. Its totient is φ = 9795205195776.

The previous prime is 20117030002661. The next prime is 20117030002681. The reversal of 20117030002672 is 27620003071102.

It is a super-2 number, since 2×20117030002672² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 1433953354 + ... + 1433967382.

It is an arithmetic number, because the mean of its divisors is an integer number (500101476948).

Almost surely, 2^{20117030002672} is an apocalyptic number.

It is an amenable number.

20117030002672 is a deficient number, since it is larger than the sum of its proper divisors (19891088153168).

20117030002672 is a wasteful number, since it uses less digits than its factorization.

20117030002672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26570 (or 26564 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

Adding to 20117030002672 its reverse (27620003071102), we get a palindrome (47737033073774).

The spelling of 20117030002672 in words is "twenty trillion, one hundred seventeen billion, thirty million, two thousand, six hundred seventy-two".