80571513651 has 32 divisors (see below), whose sum is σ = 114090716160. Its totient is φ = 50402635776.

The previous prime is 80571513643. The next prime is 80571513661. The reversal of 80571513651 is 15631517508.

It is a happy number.

It is not a de Polignac number, because 80571513651 - 2³ = 80571513643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80571513611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30322915 + ... + 30325571.

It is an arithmetic number, because the mean of its divisors is an integer number (3565334880).

Almost surely, 2^80571513651 is an apocalyptic number.

80571513651 is a deficient number, since it is larger than the sum of its proper divisors (33519202509).

80571513651 is a wasteful number, since it uses less digits than its factorization.

80571513651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243.

The product of its (nonzero) digits is 126000, while the sum is 42.

The spelling of 80571513651 in words is "eighty billion, five hundred seventy-one million, five hundred thirteen thousand, six hundred fifty-one".