1355016685 has 24 divisors (see below), whose sum is σ = 1790932248. Its totient is φ = 983452800.

The previous prime is 1355016661. The next prime is 1355016697. The reversal of 1355016685 is 5866105531.

It can be written as a sum of positive squares in 4 ways, for example, as 48483369 + 1306533316 = 6963^2 + 36146^2 .

It is not a de Polignac number, because 1355016685 - 2⁵ = 1355016653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 334975 + ... + 338995.

It is an arithmetic number, because the mean of its divisors is an integer number (74622177).

Almost surely, 2^1355016685 is an apocalyptic number.

It is an amenable number.

1355016685 is a deficient number, since it is larger than the sum of its proper divisors (435915563).

1355016685 is a wasteful number, since it uses less digits than its factorization.

1355016685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4605 (or 4594 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 1355016685 is about 36810.5512726990. The cubic root of 1355016685 is about 1106.5767666101.

The spelling of 1355016685 in words is "one billion, three hundred fifty-five million, sixteen thousand, six hundred eighty-five".