1165661710115 has 64 divisors (see below), whose sum is σ = 1637192632320. Its totient is φ = 780263393280.

The previous prime is 1165661710039. The next prime is 1165661710133. The reversal of 1165661710115 is 5110171665611.

It is not a de Polignac number, because 1165661710115 - 2¹⁴ = 1165661693731 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 400707281 + ... + 400710189.

It is an arithmetic number, because the mean of its divisors is an integer number (25581134880).

Almost surely, 2^{1165661710115} is an apocalyptic number.

1165661710115 is a deficient number, since it is larger than the sum of its proper divisors (471530922205).

1165661710115 is a wasteful number, since it uses less digits than its factorization.

1165661710115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532.

The product of its (nonzero) digits is 37800, while the sum is 41.

The spelling of 1165661710115 in words is "one trillion, one hundred sixty-five billion, six hundred sixty-one million, seven hundred ten thousand, one hundred fifteen".