1625065165 has 8 divisors (see below), whose sum is σ = 1957494528. Its totient is φ = 1295107920.

The previous prime is 1625065133. The next prime is 1625065181. The reversal of 1625065165 is 5615605261.

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

It is not a de Polignac number, because 1625065165 - 2⁵ = 1625065133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 616581 + ... + 619210.

It is an arithmetic number, because the mean of its divisors is an integer number (244686816).

Almost surely, 2^1625065165 is an apocalyptic number.

It is an amenable number.

1625065165 is a deficient number, since it is larger than the sum of its proper divisors (332429363).

1625065165 is a wasteful number, since it uses less digits than its factorization.

1625065165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236059.

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 1625065165 is about 40312.0970057376. The cubic root of 1625065165 is about 1175.6830590067.

The spelling of 1625065165 in words is "one billion, six hundred twenty-five million, sixty-five thousand, one hundred sixty-five".