601666441 has 8 divisors (see below), whose sum is σ = 614994120. Its totient is φ = 588412032.

The previous prime is 601666427. The next prime is 601666463. The reversal of 601666441 is 144666106.

It can be written as a sum of positive squares in 4 ways, for example, as 127690000 + 473976441 = 11300^2 + 21771^2 .

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 601666441 - 2¹⁷ = 601535369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 601666397 and 601666406.

It is not an unprimeable number, because it can be changed into a prime (601666421) 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, 1546 + ... + 34723.

It is an arithmetic number, because the mean of its divisors is an integer number (76874265).

Almost surely, 2^601666441 is an apocalyptic number.

It is an amenable number.

601666441 is a deficient number, since it is larger than the sum of its proper divisors (13327679).

601666441 is a wasteful number, since it uses less digits than its factorization.

601666441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36635.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 601666441 is about 24528.8899259628. The cubic root of 601666441 is about 844.2127939335.

The spelling of 601666441 in words is "six hundred one million, six hundred sixty-six thousand, four hundred forty-one".