506656101641 has 4 divisors (see below), whose sum is σ = 506849706132. Its totient is φ = 506462497152.

The previous prime is 506656101619. The next prime is 506656101659. The reversal of 506656101641 is 146101656605.

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 491681440000 + 14974661641 = 701200^2 + 122371^2 .

It is a cyclic number.

It is not a de Polignac number, because 506656101641 - 2⁶ = 506656101577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (506656100641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96798320 + ... + 96803553.

It is an arithmetic number, because the mean of its divisors is an integer number (126712426533).

Almost surely, 2^506656101641 is an apocalyptic number.

It is an amenable number.

506656101641 is a deficient number, since it is larger than the sum of its proper divisors (193604491).

506656101641 is a wasteful number, since it uses less digits than its factorization.

506656101641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193604490.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 506656101641 in words is "five hundred six billion, six hundred fifty-six million, one hundred one thousand, six hundred forty-one".