80778275253055 has 4 divisors (see below), whose sum is σ = 96933930303672. Its totient is φ = 64622620202440.

The previous prime is 80778275253037. The next prime is 80778275253061. The reversal of 80778275253055 is 55035257287708.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 80778275253055 - 2¹¹ = 80778275251007 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 8077827525301 + ... + 8077827525310.

It is an arithmetic number, because the mean of its divisors is an integer number (24233482575918).

Almost surely, 2^{80778275253055} is an apocalyptic number.

80778275253055 is a deficient number, since it is larger than the sum of its proper divisors (16155655050617).

80778275253055 is a wasteful number, since it uses less digits than its factorization.

80778275253055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16155655050616.

The product of its (nonzero) digits is 164640000, while the sum is 64.

The spelling of 80778275253055 in words is "eighty trillion, seven hundred seventy-eight billion, two hundred seventy-five million, two hundred fifty-three thousand, fifty-five".