80958661 has 8 divisors (see below), whose sum is σ = 93389760. Its totient is φ = 68743968.

The previous prime is 80958623. The next prime is 80958697. The reversal of 80958661 is 16685908.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80958661 - 2¹⁵ = 80925893 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 (80958611) 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 7 ways as a sum of consecutive naturals, for example, 53296 + ... + 54793.

It is an arithmetic number, because the mean of its divisors is an integer number (11673720).

Almost surely, 2^80958661 is an apocalyptic number.

It is an amenable number.

80958661 is a deficient number, since it is larger than the sum of its proper divisors (12431099).

80958661 is a wasteful number, since it uses less digits than its factorization.

80958661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108203.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 80958661 is about 8997.7030957906. The cubic root of 80958661 is about 432.6012522026.

The spelling of 80958661 in words is "eighty million, nine hundred fifty-eight thousand, six hundred sixty-one".