80665110108390 has 32 divisors (see below), whose sum is σ = 193931786423520. Its totient is φ = 21473415788544.

The previous prime is 80665110108389. The next prime is 80665110108403. The reversal of 80665110108390 is 9380101156608.

It is a congruent 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, 2329997425 + ... + 2330032044.

It is an arithmetic number, because the mean of its divisors is an integer number (6060368325735).

Almost surely, 2^{80665110108390} is an apocalyptic number.

80665110108390 is an abundant number, since it is smaller than the sum of its proper divisors (113266676315130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80665110108390 is a wasteful number, since it uses less digits than its factorization.

80665110108390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4660030056.

The product of its (nonzero) digits is 311040, while the sum is 48.

The spelling of 80665110108390 in words is "eighty trillion, six hundred sixty-five billion, one hundred ten million, one hundred eight thousand, three hundred ninety".