810006550601 has 4 divisors (see below), whose sum is σ = 857653994772. Its totient is φ = 762359106432.

The previous prime is 810006550579. The next prime is 810006550627. The reversal of 810006550601 is 106055600018.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 106055600018 = 2 ⋅53027800009.

It can be written as a sum of positive squares in 2 ways, for example, as 270150457600 + 539856093001 = 519760^2 + 734749^2 .

It is a cyclic number.

It is not a de Polignac number, because 810006550601 - 2¹⁴ = 810006534217 is a prime.

It is a super-2 number, since 2×810006550601² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (810006550901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23823722060 + ... + 23823722093.

It is an arithmetic number, because the mean of its divisors is an integer number (214413498693).

Almost surely, 2^810006550601 is an apocalyptic number.

It is an amenable number.

810006550601 is a deficient number, since it is larger than the sum of its proper divisors (47647444171).

810006550601 is a wasteful number, since it uses less digits than its factorization.

810006550601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47647444170.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 810006550601 in words is "eight hundred ten billion, six million, five hundred fifty thousand, six hundred one".