80910409555 has 16 divisors (see below), whose sum is σ = 97320109824. Its totient is φ = 64576677600.

The previous prime is 80910409537. The next prime is 80910409579. The reversal of 80910409555 is 55590401908.

It is not a de Polignac number, because 80910409555 - 2⁹ = 80910409043 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12539080 + ... + 12545530.

It is an arithmetic number, because the mean of its divisors is an integer number (6082506864).

Almost surely, 2^80910409555 is an apocalyptic number.

80910409555 is a deficient number, since it is larger than the sum of its proper divisors (16409700269).

80910409555 is a wasteful number, since it uses less digits than its factorization.

80910409555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11946.

The product of its (nonzero) digits is 324000, while the sum is 46.

The spelling of 80910409555 in words is "eighty billion, nine hundred ten million, four hundred nine thousand, five hundred fifty-five".