80996663 has 16 divisors (see below), whose sum is σ = 91521024. Its totient is φ = 71033760.

The previous prime is 80996633. The next prime is 80996683. The reversal of 80996663 is 36669908.

It is a cyclic number.

It is not a de Polignac number, because 80996663 - 2⁸ = 80996407 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 (80996633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50906 + ... + 52472.

It is an arithmetic number, because the mean of its divisors is an integer number (5720064).

Almost surely, 2^80996663 is an apocalyptic number.

80996663 is a deficient number, since it is larger than the sum of its proper divisors (10524361).

80996663 is a wasteful number, since it uses less digits than its factorization.

80996663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 80996663 is about 8999.8146092017. The cubic root of 80996663 is about 432.6689292985.

The spelling of 80996663 in words is "eighty million, nine hundred ninety-six thousand, six hundred sixty-three".