80669356 has 12 divisors (see below), whose sum is σ = 141270192. Its totient is φ = 40306448.

The previous prime is 80669341. The next prime is 80669377. The reversal of 80669356 is 65396608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201 + ... + 12703.

It is an arithmetic number, because the mean of its divisors is an integer number (11772516).

Almost surely, 2^80669356 is an apocalyptic number.

It is an amenable number.

80669356 is a deficient number, since it is larger than the sum of its proper divisors (60600836).

80669356 is a wasteful number, since it uses less digits than its factorization.

80669356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14120 (or 14118 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 80669356 is about 8981.6121047393. The cubic root of 80669356 is about 432.0853383650.

The spelling of 80669356 in words is "eighty million, six hundred sixty-nine thousand, three hundred fifty-six".