4128156601 has 4 divisors (see below), whose sum is σ = 4155862500. Its totient is φ = 4100450704.

The previous prime is 4128156577. The next prime is 4128156611. The reversal of 4128156601 is 1066518214.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2179022400 + 1949134201 = 46680^2 + 44149^2 .

It is a cyclic number.

It is not a de Polignac number, because 4128156601 - 2¹⁷ = 4128025529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4128156611) 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, 13852726 + ... + 13853023.

It is an arithmetic number, because the mean of its divisors is an integer number (1038965625).

Almost surely, 2^4128156601 is an apocalyptic number.

It is an amenable number.

4128156601 is a deficient number, since it is larger than the sum of its proper divisors (27705899).

4128156601 is a wasteful number, since it uses less digits than its factorization.

4128156601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27705898.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 4128156601 is about 64250.7322993287. The cubic root of 4128156601 is about 1604.1761478069.

The spelling of 4128156601 in words is "four billion, one hundred twenty-eight million, one hundred fifty-six thousand, six hundred one".