80612665 has 8 divisors (see below), whose sum is σ = 110554560. Its totient is φ = 55277232.

The previous prime is 80612639. The next prime is 80612681. The reversal of 80612665 is 56621608.

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 80612665 - 2¹³ = 80604473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80612665.

It is an unprimeable number.

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, 1151575 + ... + 1151644.

It is an arithmetic number, because the mean of its divisors is an integer number (13819320).

Almost surely, 2^80612665 is an apocalyptic number.

It is an amenable number.

80612665 is a deficient number, since it is larger than the sum of its proper divisors (29941895).

80612665 is a wasteful number, since it uses less digits than its factorization.

80612665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303231.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 80612665 is about 8978.4556021623. The cubic root of 80612665 is about 431.9840975656.

The spelling of 80612665 in words is "eighty million, six hundred twelve thousand, six hundred sixty-five".