1656000601 has 8 divisors (see below), whose sum is σ = 1759405320. Its totient is φ = 1555682688.

The previous prime is 1656000569. The next prime is 1656000623. The reversal of 1656000601 is 1060006561.

It can be written as a sum of positive squares in 4 ways, for example, as 550371600 + 1105629001 = 23460^2 + 33251^2 .

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 1656000601 - 2⁵ = 1656000569 is a prime.

It is a super-2 number, since 2×1656000601² = 5484675981024722402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1656000631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 770596 + ... + 772741.

It is an arithmetic number, because the mean of its divisors is an integer number (219925665).

Almost surely, 2^1656000601 is an apocalyptic number.

It is an amenable number.

1656000601 is a deficient number, since it is larger than the sum of its proper divisors (103404719).

1656000601 is a wasteful number, since it uses less digits than its factorization.

1656000601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543403.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1656000601 is about 40693.9872831356. The cubic root of 1656000601 is about 1183.0964830643.

The spelling of 1656000601 in words is "one billion, six hundred fifty-six million, six hundred one", and thus it is an aban number.