80695851503 has 4 divisors (see below), whose sum is σ = 80720907768. Its totient is φ = 80670795240.

The previous prime is 80695851497. The next prime is 80695851521. The reversal of 80695851503 is 30515859608.

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

It is a cyclic number.

It is not a de Polignac number, because 80695851503 - 2¹⁶ = 80695785967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80695850503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12523301 + ... + 12529742.

It is an arithmetic number, because the mean of its divisors is an integer number (20180226942).

Almost surely, 2^80695851503 is an apocalyptic number.

80695851503 is a deficient number, since it is larger than the sum of its proper divisors (25056265).

80695851503 is a wasteful number, since it uses less digits than its factorization.

80695851503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25056264.

The product of its (nonzero) digits is 1296000, while the sum is 50.

The spelling of 80695851503 in words is "eighty billion, six hundred ninety-five million, eight hundred fifty-one thousand, five hundred three".