7025061665 has 4 divisors (see below), whose sum is σ = 8430074004. Its totient is φ = 5620049328.

The previous prime is 7025061629. The next prime is 7025061677. The reversal of 7025061665 is 5661605207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5661605207 = 463 ⋅12228089.

It can be written as a sum of positive squares in 2 ways, for example, as 4431298624 + 2593763041 = 66568^2 + 50929^2 .

It is a cyclic number.

It is not a de Polignac number, because 7025061665 - 2¹⁰ = 7025060641 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702506162 + ... + 702506171.

It is an arithmetic number, because the mean of its divisors is an integer number (2107518501).

Almost surely, 2^7025061665 is an apocalyptic number.

It is an amenable number.

7025061665 is a deficient number, since it is larger than the sum of its proper divisors (1405012339).

7025061665 is a wasteful number, since it uses less digits than its factorization.

7025061665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405012338.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 7025061665 is about 83815.6409329428. The cubic root of 7025061665 is about 1915.2113799304.

The spelling of 7025061665 in words is "seven billion, twenty-five million, sixty-one thousand, six hundred sixty-five".