80059661 has 4 divisors (see below), whose sum is σ = 87337824. Its totient is φ = 72781500.

The previous prime is 80059643. The next prime is 80059669. The reversal of 80059661 is 16695008.

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 not a de Polignac number, because 80059661 - 2²⁶ = 12950797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80059669) 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 3 ways as a sum of consecutive naturals, for example, 3639065 + ... + 3639086.

It is an arithmetic number, because the mean of its divisors is an integer number (21834456).

Almost surely, 2^80059661 is an apocalyptic number.

It is an amenable number.

80059661 is a deficient number, since it is larger than the sum of its proper divisors (7278163).

80059661 is a wasteful number, since it uses less digits than its factorization.

80059661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7278162.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 80059661 is about 8947.6064397134. The cubic root of 80059661 is about 430.9940244971.

The spelling of 80059661 in words is "eighty million, fifty-nine thousand, six hundred sixty-one".