117643251206 has 64 divisors (see below), whose sum is σ = 195520131072. Its totient is φ = 52749747072.

The previous prime is 117643251203. The next prime is 117643251221. The reversal of 117643251206 is 602152346711.

It is a self number, because there is not a number n which added to its sum of digits gives 117643251206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117643251203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124226825 + ... + 124227771.

It is an arithmetic number, because the mean of its divisors is an integer number (3055002048).

Almost surely, 2^117643251206 is an apocalyptic number.

117643251206 is a deficient number, since it is larger than the sum of its proper divisors (77876879866).

117643251206 is a wasteful number, since it uses less digits than its factorization.

117643251206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653.

The product of its (nonzero) digits is 60480, while the sum is 38.

Adding to 117643251206 its reverse (602152346711), we get a palindrome (719795597917).

The spelling of 117643251206 in words is "one hundred seventeen billion, six hundred forty-three million, two hundred fifty-one thousand, two hundred six".