80416555 has 8 divisors (see below), whose sum is σ = 96638400. Its totient is φ = 64240896.

The previous prime is 80416543. The next prime is 80416559. The reversal of 80416555 is 55561408.

It is a happy number.

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 80416555 - 2²¹ = 78319403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80416555.

It is not an unprimeable number, because it can be changed into a prime (80416559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7590 + ... + 14779.

It is an arithmetic number, because the mean of its divisors is an integer number (12079800).

Almost surely, 2^80416555 is an apocalyptic number.

80416555 is a deficient number, since it is larger than the sum of its proper divisors (16221845).

80416555 is a wasteful number, since it uses less digits than its factorization.

80416555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23093.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 80416555 is about 8967.5278087107. The cubic root of 80416555 is about 431.6335108344.

It can be divided in two parts, 804 and 16555, that multiplied together give a triangular number (13310220 = T₅₁₅₉).

The spelling of 80416555 in words is "eighty million, four hundred sixteen thousand, five hundred fifty-five".