80664550 has 24 divisors (see below), whose sum is σ = 150320736. Its totient is φ = 32204640.

The previous prime is 80664539. The next prime is 80664587. The reversal of 80664550 is 5546608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32659 + ... + 35041.

It is an arithmetic number, because the mean of its divisors is an integer number (6263364).

Almost surely, 2^80664550 is an apocalyptic number.

80664550 is a deficient number, since it is larger than the sum of its proper divisors (69656186).

80664550 is a wasteful number, since it uses less digits than its factorization.

80664550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072 (or 3067 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 80664550 is about 8981.3445541300. The cubic root of 80664550 is about 432.0767574801.

It can be divided in two parts, 806 and 64550, that added together give a palindrome (65356).

The spelling of 80664550 in words is "eighty million, six hundred sixty-four thousand, five hundred fifty".