601161665001 has 4 divisors (see below), whose sum is σ = 801548886672. Its totient is φ = 400774443332.

The previous prime is 601161664937. The next prime is 601161665009. The reversal of 601161665001 is 100566161106.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 601161665001 - 2⁶ = 601161664937 is a prime.

It is a super-2 number, since 2×601161665001² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (601161665009) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 100193610831 + ... + 100193610836.

It is an arithmetic number, because the mean of its divisors is an integer number (200387221668).

Almost surely, 2^601161665001 is an apocalyptic number.

It is an amenable number.

601161665001 is a deficient number, since it is larger than the sum of its proper divisors (200387221671).

601161665001 is a wasteful number, since it uses less digits than its factorization.

601161665001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200387221670.

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 601161665001 in words is "six hundred one billion, one hundred sixty-one million, six hundred sixty-five thousand, one".