80807158756 has 27 divisors (see below), whose sum is σ = 143108896539. Its totient is φ = 39924591168.

The previous prime is 80807158753. The next prime is 80807158819. The reversal of 80807158756 is 65785170808.

The square root of 80807158756 is 284266.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 29828744100 + 50978414656 = 172710^2 + 225784^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80807158697 and 80807158706.

It is not an unprimeable number, because it can be changed into a prime (80807158753) 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 8 ways as a sum of consecutive naturals, for example, 50598550 + ... + 50600146.

Almost surely, 2^80807158756 is an apocalyptic number.

80807158756 is the 284266-th square number.

It is an amenable number.

80807158756 is a deficient number, since it is larger than the sum of its proper divisors (62301737783).

80807158756 is an frugal number, since it uses more digits than its factorization.

80807158756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376 (or 1688 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 55.

The spelling of 80807158756 in words is "eighty billion, eight hundred seven million, one hundred fifty-eight thousand, seven hundred fifty-six".