465530021665 has 8 divisors (see below), whose sum is σ = 563579708328. Its totient is φ = 369128229120.

The previous prime is 465530021617. The next prime is 465530021687. The reversal of 465530021665 is 566120035564.

It can be written as a sum of positive squares in 4 ways, for example, as 11514148416 + 454015873249 = 107304^2 + 673807^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-465530021665 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411972906 + ... + 411974035.

It is an arithmetic number, because the mean of its divisors is an integer number (70447463541).

Almost surely, 2^465530021665 is an apocalyptic number.

It is an amenable number.

465530021665 is a deficient number, since it is larger than the sum of its proper divisors (98049686663).

465530021665 is a wasteful number, since it uses less digits than its factorization.

465530021665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823947059.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 465530021665 in words is "four hundred sixty-five billion, five hundred thirty million, twenty-one thousand, six hundred sixty-five".