805115560013451 has 24 divisors (see below), whose sum is σ = 1210821571237824. Its totient is φ = 534605285493000.

The previous prime is 805115560013383. The next prime is 805115560013477. The reversal of 805115560013451 is 154310065511508.

805115560013451 is a `hidden beast` number, since 8 + 0 + 5 + 1 + 1 + 5 + 5 + 600 + 1 + 34 + 5 + 1 = 666.

It is not a de Polignac number, because 805115560013451 - 2²² = 805115555819147 is a prime.

It is a super-2 number, since 2×805115560013451² (a number of 31 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 805115560013397 and 805115560013406.

It is not an unprimeable number, because it can be changed into a prime (805115560013551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6600004261 + ... + 6600126246.

It is an arithmetic number, because the mean of its divisors is an integer number (50450898801576).

Almost surely, 2^{805115560013451} is an apocalyptic number.

805115560013451 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

805115560013451 is a deficient number, since it is larger than the sum of its proper divisors (405706011224373).

805115560013451 is a wasteful number, since it uses less digits than its factorization.

805115560013451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13200130773 (or 13200130761 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 45.

The spelling of 805115560013451 in words is "eight hundred five trillion, one hundred fifteen billion, five hundred sixty million, thirteen thousand, four hundred fifty-one".