117100215649 has 2 divisors, whose sum is σ = 117100215650. Its totient is φ = 117100215648.

The previous prime is 117100215637. The next prime is 117100215709. The reversal of 117100215649 is 946512001711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111427113249 + 5673102400 = 333807^2 + 75320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117100215649 is a prime.

It is not a weakly prime, because it can be changed into another prime (117100210649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58550107824 + 58550107825.

It is an arithmetic number, because the mean of its divisors is an integer number (58550107825).

Almost surely, 2^117100215649 is an apocalyptic number.

It is an amenable number.

117100215649 is a deficient number, since it is larger than the sum of its proper divisors (1).

117100215649 is an equidigital number, since it uses as much as digits as its factorization.

117100215649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 37.

The spelling of 117100215649 in words is "one hundred seventeen billion, one hundred million, two hundred fifteen thousand, six hundred forty-nine".