80266005 has 16 divisors (see below), whose sum is σ = 142695360. Its totient is φ = 42808464.

The previous prime is 80266003. The next prime is 80266049. The reversal of 80266005 is 50066208.

It is not a de Polignac number, because 80266005 - 2¹ = 80266003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 80266005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80266003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297147 + ... + 297416.

It is an arithmetic number, because the mean of its divisors is an integer number (8918460).

Almost surely, 2^80266005 is an apocalyptic number.

It is an amenable number.

80266005 is a deficient number, since it is larger than the sum of its proper divisors (62429355).

80266005 is a wasteful number, since it uses less digits than its factorization.

80266005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594577 (or 594571 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 80266005 is about 8959.1297010368. The cubic root of 80266005 is about 431.3639849925.

It can be divided in two parts, 80 and 266005, that added together give a triangular number (266085 = T₇₂₉).

The spelling of 80266005 in words is "eighty million, two hundred sixty-six thousand, five".