505106111001 has 8 divisors (see below), whose sum is σ = 673485109920. Its totient is φ = 336732259712.

The previous prime is 505106110969. The next prime is 505106111017. The reversal of 505106111001 is 100111601505.

It is a happy number.

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 505106111001 - 2⁵ = 505106110969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505106112001) 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, 1051815 + ... + 1454828.

It is an arithmetic number, because the mean of its divisors is an integer number (84185638740).

Almost surely, 2^505106111001 is an apocalyptic number.

It is an amenable number.

505106111001 is a deficient number, since it is larger than the sum of its proper divisors (168378998919).

505106111001 is a wasteful number, since it uses less digits than its factorization.

505106111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573815.

The product of its (nonzero) digits is 150, while the sum is 21.

Adding to 505106111001 its reverse (100111601505), we get a palindrome (605217712506).

The spelling of 505106111001 in words is "five hundred five billion, one hundred six million, one hundred eleven thousand, one".