80155260 has 36 divisors (see below), whose sum is σ = 243138168. Its totient is φ = 21374688.

The previous prime is 80155247. The next prime is 80155261. The reversal of 80155260 is 6255108.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80155261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222474 + ... + 222833.

It is an arithmetic number, because the mean of its divisors is an integer number (6753838).

Almost surely, 2^80155260 is an apocalyptic number.

It is an amenable number.

80155260 is an abundant number, since it is smaller than the sum of its proper divisors (162982908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80155260 is a wasteful number, since it uses less digits than its factorization.

80155260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445322 (or 445317 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 80155260 is about 8952.9470008484. The cubic root of 80155260 is about 431.1655058155.

The spelling of 80155260 in words is "eighty million, one hundred fifty-five thousand, two hundred sixty".