80278466638855 has 8 divisors (see below), whose sum is σ = 97287963531264. Its totient is φ = 63586904268000.

The previous prime is 80278466638823. The next prime is 80278466638897. The reversal of 80278466638855 is 55883666487208.

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

It is not a de Polignac number, because 80278466638855 - 2⁵ = 80278466638823 is a prime.

It is a super-2 number, since 2×80278466638855² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79483629831 + ... + 79483630840.

It is an arithmetic number, because the mean of its divisors is an integer number (12160995441408).

Almost surely, 2^{80278466638855} is an apocalyptic number.

80278466638855 is a deficient number, since it is larger than the sum of its proper divisors (17009496892409).

80278466638855 is a wasteful number, since it uses less digits than its factorization.

80278466638855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158967260777.

The product of its (nonzero) digits is 3715891200, while the sum is 76.

The spelling of 80278466638855 in words is "eighty trillion, two hundred seventy-eight billion, four hundred sixty-six million, six hundred thirty-eight thousand, eight hundred fifty-five".