805605515151 has 16 divisors (see below), whose sum is σ = 1090862665728. Its totient is φ = 528773918400.

The previous prime is 805605515137. The next prime is 805605515177. The reversal of 805605515151 is 151515506508.

It is not a de Polignac number, because 805605515151 - 2³¹ = 803458031503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805605515131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8020510 + ... + 8120331.

It is an arithmetic number, because the mean of its divisors is an integer number (68178916608).

Almost surely, 2^805605515151 is an apocalyptic number.

805605515151 is a deficient number, since it is larger than the sum of its proper divisors (285257150577).

805605515151 is a wasteful number, since it uses less digits than its factorization.

805605515151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16141102.

The product of its (nonzero) digits is 150000, while the sum is 42.

The spelling of 805605515151 in words is "eight hundred five billion, six hundred five million, five hundred fifteen thousand, one hundred fifty-one".