601660061 has 4 divisors (see below), whose sum is σ = 633326400. Its totient is φ = 569993724.

The previous prime is 601660051. The next prime is 601660079. The reversal of 601660061 is 160066106.

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, and also an emirpimes, since its reverse is a distinct semiprime: 160066106 = 2 ⋅80033053.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-601660061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 601660061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (601660001) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 15833141 + ... + 15833178.

It is an arithmetic number, because the mean of its divisors is an integer number (158331600).

Almost surely, 2^601660061 is an apocalyptic number.

It is an amenable number.

601660061 is a deficient number, since it is larger than the sum of its proper divisors (31666339).

601660061 is a wasteful number, since it uses less digits than its factorization.

601660061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31666338.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 601660061 is about 24528.7598748897. The cubic root of 601660061 is about 844.2098099453.

The spelling of 601660061 in words is "six hundred one million, six hundred sixty thousand, sixty-one".