601000166065 has 32 divisors (see below), whose sum is σ = 822718856736. Its totient is φ = 417528483840.

The previous prime is 601000166003. The next prime is 601000166071. The reversal of 601000166065 is 560661000106.

It can be written as a sum of positive squares in 16 ways, for example, as 1341976689 + 599658189376 = 36633^2 + 774376^2 .

It is not a de Polignac number, because 601000166065 - 2²³ = 600991777457 is a prime.

It is a super-2 number, since 2×601000166065² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2470639 + ... + 2702971.

It is an arithmetic number, because the mean of its divisors is an integer number (25709964273).

Almost surely, 2^601000166065 is an apocalyptic number.

601000166065 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

601000166065 is a deficient number, since it is larger than the sum of its proper divisors (221718690671).

601000166065 is a wasteful number, since it uses less digits than its factorization.

601000166065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234709.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 601000166065 in words is "six hundred one billion, one hundred sixty-six thousand, sixty-five".