80356016555 has 8 divisors (see below), whose sum is σ = 96509572944. Its totient is φ = 64229911200.

The previous prime is 80356016537. The next prime is 80356016641. The reversal of 80356016555 is 55561065308.

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

It is not a de Polignac number, because 80356016555 - 2¹² = 80356012459 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6856316 + ... + 6868025.

It is an arithmetic number, because the mean of its divisors is an integer number (12063696618).

Almost surely, 2^80356016555 is an apocalyptic number.

80356016555 is a deficient number, since it is larger than the sum of its proper divisors (16153556389).

80356016555 is a wasteful number, since it uses less digits than its factorization.

80356016555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13725517.

The product of its (nonzero) digits is 540000, while the sum is 44.

The spelling of 80356016555 in words is "eighty billion, three hundred fifty-six million, sixteen thousand, five hundred fifty-five".