659161645 has 8 divisors (see below), whose sum is σ = 791138304. Its totient is φ = 527233104.

The previous prime is 659161639. The next prime is 659161673. The reversal of 659161645 is 546161956.

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 659161645 - 2⁹ = 659161133 is a prime.

It is a super-3 number, since 3×659161645³ (a number of 27 digits) contains 333 as substring.

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, 34432 + ... + 50038.

It is an arithmetic number, because the mean of its divisors is an integer number (98892288).

Almost surely, 2^659161645 is an apocalyptic number.

It is an amenable number.

659161645 is a deficient number, since it is larger than the sum of its proper divisors (131976659).

659161645 is a wasteful number, since it uses less digits than its factorization.

659161645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24059.

The product of its digits is 194400, while the sum is 43.

The square root of 659161645 is about 25674.1435105438. The cubic root of 659161645 is about 870.2899658811.

The spelling of 659161645 in words is "six hundred fifty-nine million, one hundred sixty-one thousand, six hundred forty-five".