2065102621 has 8 divisors (see below), whose sum is σ = 2094743160. Its totient is φ = 2035498752.

The previous prime is 2065102619. The next prime is 2065102631. The reversal of 2065102621 is 1262015602.

It can be written as a sum of positive squares in 4 ways, for example, as 563540121 + 1501562500 = 23739^2 + 38750^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2065102621 - 2¹ = 2065102619 is a prime.

It is a super-2 number, since 2×2065102621² = 8529297670522139282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065102631) 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, 116481 + ... + 133033.

It is an arithmetic number, because the mean of its divisors is an integer number (261842895).

Almost surely, 2^2065102621 is an apocalyptic number.

It is an amenable number.

2065102621 is a deficient number, since it is larger than the sum of its proper divisors (29640539).

2065102621 is a wasteful number, since it uses less digits than its factorization.

2065102621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18335.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2065102621 is about 45443.4001918871. The cubic root of 2065102621 is about 1273.4460362691.

The spelling of 2065102621 in words is "two billion, sixty-five million, one hundred two thousand, six hundred twenty-one".