80816015 has 8 divisors (see below), whose sum is σ = 110833440. Its totient is φ = 55416672.

The previous prime is 80815993. The next prime is 80816023. The reversal of 80816015 is 51061808.

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 80816015 - 2¹² = 80811919 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1154480 + ... + 1154549.

It is an arithmetic number, because the mean of its divisors is an integer number (13854180).

Almost surely, 2^80816015 is an apocalyptic number.

80816015 is a deficient number, since it is larger than the sum of its proper divisors (30017425).

80816015 is a wasteful number, since it uses less digits than its factorization.

80816015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309041.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 80816015 is about 8989.7728002436. The cubic root of 80816015 is about 432.3470273269.

The spelling of 80816015 in words is "eighty million, eight hundred sixteen thousand, fifteen".