2065131770 has 16 divisors (see below), whose sum is σ = 4003178760. Its totient is φ = 762510144.

The previous prime is 2065131713. The next prime is 2065131791. The reversal of 2065131770 is 771315602.

It can be written as a sum of positive squares in 4 ways, for example, as 1655757481 + 409374289 = 40691^2 + 20233^2 .

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7942685 + ... + 7942944.

Almost surely, 2^2065131770 is an apocalyptic number.

2065131770 is a deficient number, since it is larger than the sum of its proper divisors (1938046990).

2065131770 is a wasteful number, since it uses less digits than its factorization.

2065131770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15885649.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 2065131770 is about 45443.7209083939. The cubic root of 2065131770 is about 1273.4520278203.

The spelling of 2065131770 in words is "two billion, sixty-five million, one hundred thirty-one thousand, seven hundred seventy".