115665466647 has 8 divisors (see below), whose sum is σ = 154237471344. Its totient is φ = 77101886528.

The previous prime is 115665466607. The next prime is 115665466703. The reversal of 115665466647 is 746664566511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115665466647 - 2¹² = 115665462551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115665466607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2074038 + ... + 2129075.

It is an arithmetic number, because the mean of its divisors is an integer number (19279683918).

Almost surely, 2^115665466647 is an apocalyptic number.

115665466647 is a deficient number, since it is larger than the sum of its proper divisors (38572004697).

115665466647 is an equidigital number, since it uses as much as digits as its factorization.

115665466647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4212289.

The product of its digits is 21772800, while the sum is 57.

The spelling of 115665466647 in words is "one hundred fifteen billion, six hundred sixty-five million, four hundred sixty-six thousand, six hundred forty-seven".