788116665 has 16 divisors (see below), whose sum is σ = 1441127808. Its totient is φ = 360281856.

The previous prime is 788116621. The next prime is 788116669. The reversal of 788116665 is 566611887.

It is not a de Polignac number, because 788116665 - 2¹⁴ = 788100281 is a prime.

It is a super-2 number, since 2×788116665² = 1242255755301444450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (788116669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3752832 + ... + 3753041.

It is an arithmetic number, because the mean of its divisors is an integer number (90070488).

Almost surely, 2^788116665 is an apocalyptic number.

It is an amenable number.

788116665 is a deficient number, since it is larger than the sum of its proper divisors (653011143).

788116665 is a wasteful number, since it uses less digits than its factorization.

788116665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7505888.

The product of its digits is 483840, while the sum is 48.

The square root of 788116665 is about 28073.4156276004. The cubic root of 788116665 is about 923.6983552299.

The spelling of 788116665 in words is "seven hundred eighty-eight million, one hundred sixteen thousand, six hundred sixty-five".