2065005651 has 8 divisors (see below), whose sum is σ = 2768553424. Its totient is φ = 1369064160.

The previous prime is 2065005629. The next prime is 2065005653. The reversal of 2065005651 is 1565005602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2065005651 - 2¹⁷ = 2064874579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2065005653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1900936 + ... + 1902021.

It is an arithmetic number, because the mean of its divisors is an integer number (346069178).

Almost surely, 2^2065005651 is an apocalyptic number.

2065005651 is a deficient number, since it is larger than the sum of its proper divisors (703547773).

2065005651 is a wasteful number, since it uses less digits than its factorization.

2065005651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3803141.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 2065005651 is about 45442.3332477548. Note that the first 3 decimals coincide. The cubic root of 2065005651 is about 1273.4261037657.

The spelling of 2065005651 in words is "two billion, sixty-five million, five thousand, six hundred fifty-one".