2135865416 has 8 divisors (see below), whose sum is σ = 4004747670. Its totient is φ = 1067932704.

The previous prime is 2135865379. The next prime is 2135865461. The reversal of 2135865416 is 6145685312.

It can be written as a sum of positive squares in only one way, i.e., 2111402500 + 24462916 = 45950^2 + 4946^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 133491581 + ... + 133491596.

Almost surely, 2^2135865416 is an apocalyptic number.

It is an amenable number.

2135865416 is a deficient number, since it is larger than the sum of its proper divisors (1868882254).

2135865416 is a wasteful number, since it uses less digits than its factorization.

2135865416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266983183 (or 266983179 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 2135865416 is about 46215.4240054119. The cubic root of 2135865416 is about 1287.8282903819.

The spelling of 2135865416 in words is "two billion, one hundred thirty-five million, eight hundred sixty-five thousand, four hundred sixteen".