601661651 has 8 divisors (see below), whose sum is σ = 605515008. Its totient is φ = 597816000.

The previous prime is 601661587. The next prime is 601661653. The reversal of 601661651 is 156166106.

601661651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 601661651 - 2⁶ = 601661587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (601661653) 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, 262631 + ... + 264911.

It is an arithmetic number, because the mean of its divisors is an integer number (75689376).

Almost surely, 2^601661651 is an apocalyptic number.

601661651 is a deficient number, since it is larger than the sum of its proper divisors (3853357).

601661651 is a wasteful number, since it uses less digits than its factorization.

601661651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3853.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 601661651 is about 24528.7922858016. The cubic root of 601661651 is about 844.2105536058.

The spelling of 601661651 in words is "six hundred one million, six hundred sixty-one thousand, six hundred fifty-one".