4065405105 has 8 divisors (see below), whose sum is σ = 6504648192. Its totient is φ = 2168216048.

The previous prime is 4065405103. The next prime is 4065405119. The reversal of 4065405105 is 5015045604.

4065405105 = 15020² + 15021² + ... + 15037².

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 4065405105 - 2¹ = 4065405103 is a prime.

It is a super-2 number, since 2×4065405105² = 33055037335520122050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4065405103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135513489 + ... + 135513518.

It is an arithmetic number, because the mean of its divisors is an integer number (813081024).

Almost surely, 2^4065405105 is an apocalyptic number.

It is an amenable number.

4065405105 is a deficient number, since it is larger than the sum of its proper divisors (2439243087).

4065405105 is a wasteful number, since it uses less digits than its factorization.

4065405105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271027015.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 4065405105 is about 63760.5293657448. The cubic root of 4065405105 is about 1596.0063296305.

The spelling of 4065405105 in words is "four billion, sixty-five million, four hundred five thousand, one hundred five".