2065156646 has 12 divisors (see below), whose sum is σ = 3603487788. Its totient is φ = 885067092.

The previous prime is 2065156631. The next prime is 2065156693. The reversal of 2065156646 is 6466515602.

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 5 ways as a sum of consecutive naturals, for example, 10536416 + ... + 10536611.

It is an arithmetic number, because the mean of its divisors is an integer number (300290649).

Almost surely, 2^2065156646 is an apocalyptic number.

2065156646 is a deficient number, since it is larger than the sum of its proper divisors (1538331142).

2065156646 is a wasteful number, since it uses less digits than its factorization.

2065156646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21073043 (or 21073036 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 2065156646 is about 45443.9946087489. The cubic root of 2065156646 is about 1273.4571410154.

The spelling of 2065156646 in words is "two billion, sixty-five million, one hundred fifty-six thousand, six hundred forty-six".