80939800553 has 2 divisors, whose sum is σ = 80939800554. Its totient is φ = 80939800552.

The previous prime is 80939800531. The next prime is 80939800559. The reversal of 80939800553 is 35500893908.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79499749849 + 1440050704 = 281957^2 + 37948^2 .

It is a cyclic number.

It is not a de Polignac number, because 80939800553 - 2¹⁴ = 80939784169 is a prime.

It is not a weakly prime, because it can be changed into another prime (80939800559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40469900276 + 40469900277.

It is an arithmetic number, because the mean of its divisors is an integer number (40469900277).

Almost surely, 2^80939800553 is an apocalyptic number.

It is an amenable number.

80939800553 is a deficient number, since it is larger than the sum of its proper divisors (1).

80939800553 is an equidigital number, since it uses as much as digits as its factorization.

80939800553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 80939800553 in words is "eighty billion, nine hundred thirty-nine million, eight hundred thousand, five hundred fifty-three".