4161601537 has 8 divisors (see below), whose sum is σ = 4178692616. Its totient is φ = 4144545792.

The previous prime is 4161601523. The next prime is 4161601571. The reversal of 4161601537 is 7351061614.

It can be written as a sum of positive squares in 4 ways, for example, as 2486418496 + 1675183041 = 49864^2 + 40929^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 6-Lehmer number, since φ(4161601537) divides (4161601537-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 4161601537 - 2¹⁵ = 4161568769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4161601517) 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, 241513 + ... + 258169.

It is an arithmetic number, because the mean of its divisors is an integer number (522336577).

It is a Proth number, since it is equal to 63501 ⋅ 2¹⁶ + 1 and 63501 < 2¹⁶.

Almost surely, 2^4161601537 is an apocalyptic number.

It is an amenable number.

4161601537 is a deficient number, since it is larger than the sum of its proper divisors (17091079).

4161601537 is a wasteful number, since it uses less digits than its factorization.

4161601537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17667.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 4161601537 is about 64510.4761802298. The cubic root of 4161601537 is about 1608.4966660926.

The spelling of 4161601537 in words is "four billion, one hundred sixty-one million, six hundred one thousand, five hundred thirty-seven".