115665466646 has 16 divisors (see below), whose sum is σ = 174447743040. Its totient is φ = 57516775680.

The previous prime is 115665466607. The next prime is 115665466703. The reversal of 115665466646 is 646664566511.

It is a junction number, because it is equal to n+sod(n) for n = 115665466591 and 115665466600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278630 + ... + 555846.

It is an arithmetic number, because the mean of its divisors is an integer number (10902983940).

Almost surely, 2^115665466646 is an apocalyptic number.

115665466646 is a deficient number, since it is larger than the sum of its proper divisors (58782276394).

115665466646 is a wasteful number, since it uses less digits than its factorization.

115665466646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278359.

The product of its digits is 18662400, while the sum is 56.

The spelling of 115665466646 in words is "one hundred fifteen billion, six hundred sixty-five million, four hundred sixty-six thousand, six hundred forty-six".