659551465 has 24 divisors (see below), whose sum is σ = 885044160. Its totient is φ = 470446848.

The previous prime is 659551457. The next prime is 659551493. The reversal of 659551465 is 564155956.

It is not a de Polignac number, because 659551465 - 2³ = 659551457 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15444 + ... + 39466.

It is an arithmetic number, because the mean of its divisors is an integer number (36876840).

Almost surely, 2^659551465 is an apocalyptic number.

It is an amenable number.

659551465 is a deficient number, since it is larger than the sum of its proper divisors (225492695).

659551465 is a wasteful number, since it uses less digits than its factorization.

659551465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24081 (or 24064 counting only the distinct ones).

The product of its digits is 810000, while the sum is 46.

The square root of 659551465 is about 25681.7340730722. The cubic root of 659551465 is about 870.4614916273.

The spelling of 659551465 in words is "six hundred fifty-nine million, five hundred fifty-one thousand, four hundred sixty-five".