80066641 has 4 divisors (see below), whose sum is σ = 80642800. Its totient is φ = 79490484.

The previous prime is 80066621. The next prime is 80066653. The reversal of 80066641 is 14666008.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80066641 - 2¹³ = 80058449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80066621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287871 + ... + 288148.

It is an arithmetic number, because the mean of its divisors is an integer number (20160700).

Almost surely, 2^80066641 is an apocalyptic number.

It is an amenable number.

80066641 is a deficient number, since it is larger than the sum of its proper divisors (576159).

80066641 is a wasteful number, since it uses less digits than its factorization.

80066641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576158.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 80066641 is about 8947.9964796596. The cubic root of 80066641 is about 431.0065495350.

The spelling of 80066641 in words is "eighty million, sixty-six thousand, six hundred forty-one".