506155101665 has 16 divisors (see below), whose sum is σ = 611487226560. Its totient is φ = 402191974080.

The previous prime is 506155101659. The next prime is 506155101679. The reversal of 506155101665 is 566101551605.

It is not a de Polignac number, because 506155101665 - 2⁴ = 506155101649 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1966070 + ... + 2208560.

It is an arithmetic number, because the mean of its divisors is an integer number (38217951660).

Almost surely, 2^506155101665 is an apocalyptic number.

It is an amenable number.

506155101665 is a deficient number, since it is larger than the sum of its proper divisors (105332124895).

506155101665 is a wasteful number, since it uses less digits than its factorization.

506155101665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245312.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 506155101665 in words is "five hundred six billion, one hundred fifty-five million, one hundred one thousand, six hundred sixty-five".