1316616685 has 16 divisors (see below), whose sum is σ = 1685885760. Its totient is φ = 984182400.

The previous prime is 1316616677. The next prime is 1316616701. The reversal of 1316616685 is 5866166131.

It is not a de Polignac number, because 1316616685 - 2³ = 1316616677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87991 + ... + 101860.

It is an arithmetic number, because the mean of its divisors is an integer number (105367860).

Almost surely, 2^1316616685 is an apocalyptic number.

It is an amenable number.

1316616685 is a deficient number, since it is larger than the sum of its proper divisors (369269075).

1316616685 is a wasteful number, since it uses less digits than its factorization.

1316616685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189948.

The product of its digits is 155520, while the sum is 43.

The square root of 1316616685 is about 36285.2130350643. The cubic root of 1316616685 is about 1096.0232950654.

The spelling of 1316616685 in words is "one billion, three hundred sixteen million, six hundred sixteen thousand, six hundred eighty-five".