80500663461 has 4 divisors (see below), whose sum is σ = 107334217952. Its totient is φ = 53667108972.

The previous prime is 80500663421. The next prime is 80500663501. The reversal of 80500663461 is 16436600508.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (80500663421) and next prime (80500663501).

It is not a de Polignac number, because 80500663461 - 2¹⁷ = 80500532389 is a prime.

It is a super-2 number, since 2×80500663461² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80500663421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13416777241 + ... + 13416777246.

It is an arithmetic number, because the mean of its divisors is an integer number (26833554488).

Almost surely, 2^80500663461 is an apocalyptic number.

It is an amenable number.

80500663461 is a deficient number, since it is larger than the sum of its proper divisors (26833554491).

80500663461 is a wasteful number, since it uses less digits than its factorization.

80500663461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26833554490.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 80500663461 in words is "eighty billion, five hundred million, six hundred sixty-three thousand, four hundred sixty-one".