80802750555553 has 4 divisors (see below), whose sum is σ = 87018346752148. Its totient is φ = 74587154358960.

The previous prime is 80802750555509. The next prime is 80802750555577. The reversal of 80802750555553 is 35555505720808.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8338510971904 + 72464239583649 = 2887648^2 + 8512593^2 .

It is a cyclic number.

It is not a de Polignac number, because 80802750555553 - 2⁴¹ = 78603727300001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80802750555853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3107798098278 + ... + 3107798098303.

It is an arithmetic number, because the mean of its divisors is an integer number (21754586688037).

Almost surely, 2^{80802750555553} is an apocalyptic number.

It is an amenable number.

80802750555553 is a deficient number, since it is larger than the sum of its proper divisors (6215596196595).

80802750555553 is a wasteful number, since it uses less digits than its factorization.

80802750555553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6215596196594.

The product of its (nonzero) digits is 42000000, while the sum is 58.

The spelling of 80802750555553 in words is "eighty trillion, eight hundred two billion, seven hundred fifty million, five hundred fifty-five thousand, five hundred fifty-three".