415368665 has 8 divisors (see below), whose sum is σ = 498787848. Its totient is φ = 332064640.

The previous prime is 415368637. The next prime is 415368683. The reversal of 415368665 is 566863514.

It can be written as a sum of positive squares in 4 ways, for example, as 7772944 + 407595721 = 2788^2 + 20189^2 .

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

It is not a de Polignac number, because 415368665 - 2¹⁸ = 415106521 is a prime.

It is a super-2 number, since 2×415368665² = 345062255727764450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon 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, 20642 + ... + 35451.

It is an arithmetic number, because the mean of its divisors is an integer number (62348481).

Almost surely, 2^415368665 is an apocalyptic number.

It is an amenable number.

415368665 is a deficient number, since it is larger than the sum of its proper divisors (83419183).

415368665 is a wasteful number, since it uses less digits than its factorization.

415368665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57579.

The product of its digits is 518400, while the sum is 44.

The square root of 415368665 is about 20380.5953053389. The cubic root of 415368665 is about 746.1244015526.

The spelling of 415368665 in words is "four hundred fifteen million, three hundred sixty-eight thousand, six hundred sixty-five".